See also the works available at the Henry David Thoreau Society site and especially the bibliography at the Transcendentalism site.
Abbott, Philip. "Henry David Thoreau, the State of Nature, and the Redemption of Liberalism." Journal of Politics 47 (1985): 183-208.
Adams, Stephen, and Donald Ross, Jr. Revising Mythologies: The Composition of Thoreau's Major Works. Charlottesville: University Press of Virginia, 1988.
Advena, Jean Cameron. A Bibliography of the Thoreau Society Bulletin Bibliographies 1941-1969. Ed. Walter Harding. Troy, N. Y.: Whitston, 1971.
Allen, Francis H. A Bibliography of Henry David Thoreau. New York: B. Franklin, 1968.
Anderson, C. R. "Thoreau and The Dial: The Apprentice Years." Essays Mostly on Periodical Publishing in America. Ed. James Woodress. Durham: Duke University Press, 1973.
Anderson, Charles. The Magic Circle of Walden. New York: Holt, Rinehart, and Winston, 1968.
Bennett, Jane. Thoreau's Nature: Ethics, Politics, and the Wild. Thousand Oaks, Calif.: Sage, 1994.
Bickman, Martin. Walden: Volatile Truths. New York: Twayne, 1992.
Bloom, Harold, ed. Henry David Thoreau. New York: Chelsea House, 1987.
Bloom, Harold, ed. Henry David Thoreau's Walden. New York: Chelsea House, 1987.
Bode, Carl. "Thoreau and the Borrowed Reeds." Themes and Directions in American Literature. Ed. Ray B. Browne and Donald Pizer. Lafayette, Ind.: Purdue University Studies, 1969.
Bonner, Willard Hallam. Harp on the Shore: Thoreau and the Sea. Ed. and Completed by George R. Levine. Albany: State University of New York Press, 1985.
Borst, Raymond R., comp. The Thoreau Log: A Documentary Life of Henry David Thoreau, 1817-1862. New York: G. K. Hall, 1992.
Borst, Raymond R. Henry David Thoreau: A Descriptive Bibliography. Pittsburgh, Pa.: University of Pittsburgh Press, 1982.
Borst, Raymond R. Henry David Thoreau: A Reference guide, 1835-1899. Boston: G. K. Hall, 1987.
Boswell, Jeanetta, and Sarah Crouch. Henry David Thoreau and the Critics: A Checklist of Criticism, 1900-1978. Metuchen, N. J.: Scarecrow Press, 1981.
Boudreau, Gordon. The Roots of Walden and the Tree of Life. Nashville: Vanderbilt University Press, 1990.
Bridgman, Richard. Dark Thoreau. Lincoln: University of Nebraska Press, 1982.
Buell, Lawrence. "American Pastoral Ideology Reappraised." American Literary History 1.1 (1989): 6-29.
Buell, Lawrence. Literary Transcendentalism: Style and Vision in the American Renaissance. Ithaca: Cornell University Press, 1973.
Buell, Lawrence. The Environmental Imagination: Thoreau, Nature Writing, and the Formation of American Culture. Cambridge, Mass.: Belknap Press of Harvard University Press, 1995.
Buell, Lawrence. New England Literary Culture: From Revolution Through Renaissance. Cambridge: Cambridge University Press, 1986.
Buranelli, Vincent. "The Case Against Thoreau." Ethics 67 (1957): 257-68.
Burbick, Joan. Thoreau's Alternative History: Changing Perspectives on Nature, Culture, and Language. Philadelphia: University of Pennsylvania Press, 1987.
Bush, Sargent. "The Ends and Means in Walden: Thoreau's Use of the Catechism." ESQ 31 (1985): 1-10.
Cameron, Kenneth. Concord Literary Renaissance: Ungathered Memorabilia of Emerson, Thoreau, Hawthorne . . . Hartford: Transcendental Books, 1988.
Cameron, Sharon. Writing Nature: Henry Thoreau's Journal. New York: Oxford University Press, 1985.
Cavell, Stanley. The Senses of Walden. Expanded Edition. San Francisco: North Point Press, 1981.
Collins, Christopher. The Uses of Observation. Mouton: The Hague, 1971.
Concord Saunterer, The. Journal of Thoreauviana.
Dombrowski, Daniel A. Thoreau the Platonist. New York: P. Lang, 1986.
Drinnon, Richard. "Thoreau's Politics of the Upright Man." Massachusetts Review 4.1 (Autumn 1962): 126-38.
Duban, James. "Conscience and Consciousness: The Liberal Christian Context of Thoreau's Political Ethics." New England Quarterly 60 (1987): 208-22.
Fink, Stephen. Prophet in the Marketplace: Thoreau's Development as a Professional Writer. Princeton: Princeton University Press, 1992.
Fleck, Richard. Henry David Thoreau and John Muir among the Indians. Hamden, Conn.: Archon Books, 1985.
Friesen, Victor Carl. The Spirit of the Huckleberry: Sensuousness in Henry Thoreau. Edmonton, Alta.: University of Alberta Press, 1984.
Garber, Frederic. Thoreau's Fable of Inscribing. Princeton: Princeton University Press, 1991.
Gayet, Claude. The Intellectual Development of Henry David Thoreau. Uppsala: Almqvist & Wiksell International, 1981.
Gerber, Frederick. Thoreau's Redemptive Imagination. New York: New York University Press, 1977.
Gilmore, Michael T. American Romanticism and the Marketplace. Chicago: University of Chicago Press, 1985.
Glick, Wendell. "Civil Disobedience: Thoreau's Attack upon Relativism." Western Humanities Review 7 (1952): 35-42.
Golemba, Henry L. Thoreau's Wild Rhetoric. New York: New York University Press, 1990.
Gross, Robert A. "Culture and Cultivation: Agriculture and Society in Thoreau's Concord." Journal of American History 69 (1982): 42-61.
Hansen, Olaf. Aesthetic Individualism and Practical Intellect: American Allegory in Emerson, Thoreau, Adams, and James. Princeton: Princeton University Press, 1990.
Harding, Walter Roy. The Days of Henry Thoreau: A Biography. New York: Knopf, 1965. Rpt. Princeton: Princeton University Press, 1982.
Harding, Walter Roy. The Thoreau Centennial. Albany: State University of New York Press, 1964.
Harding, Walter Roy. Thoreau's Library. Charlottesville: University of Virginia Press, 1957.
Harding, Walter Roy. The New Thoreau Handbook. New York: New York University Press, 1980.
Harding, Walter Roy, ed. Henry David Thoreau: A Profile. New York: Hill and Wang, 1971.
Harding, Walter Roy. Thoreau: A Century of Criticism. Dallas: Southern Methodist University Press, 1954.
Herr, William A. "A More Perfect State: Thoreau's Concept of Civil Government." Massachusetts Review 16 (1975): 470-87.
Hildebidle, John. Thoreau: A Naturalist's Liberty. Cambridge, Mass.: Harvard University Press, 1983.
Hocks, Richard A. "Thoreau, Coleridge, and Barfield: Reflections on the Imagination and the Law of Polarity." Centennial Review (1973): 175-98.
Howarth, William L. The Book of Concord: Thoreau's Life as a Writer. New York: Viking Press, 1982.
Johnson, William C. What Thoreau Said: Walden and the Unsayable. Moscow, Idaho: University of Idaho Press, 1991.
Johnson, Barbara. "A Hound, a Bay Horse, and a Turtle Dove: Obscurity in Walden." A World of Difference. Baltimore: Johns Hopkins University Press, 1987. 49-56.
Jones, Samuel Arthur. Thoreau amongst Friends and Philistines, and other Thoreauviana. Ed. George Hendrick. Athens: Ohio University Press, 1982.
Lane, Lauriat, ed. Approaches to Walden. San Francisco: Wadsworth, 1961.
Lebeaux, Richard. Thoreau's Seasons. Amherst: University of Massachusetts Press, 1984.
Marx, Leo. The Machine in the Garden: Technology and the Pastoral Ideal in America. New York: Oxford University Press, 1964.
Matthiessen, F. O. American Renaissance: Art and Expression in the Age of Emerson and Whitman. London: Oxford University Press, 1941.
McIntosh, James. Thoreau as Romantic Naturalist: His Shifting Stance toward Nature. Ithaca: Cornell University Press, 1974.
Metzger, Charles Reid. Thoreau and Whitman: A Study of their Esthetics. Seattle: University of Washington Press, 1961.
Meyer, Michael. Several More Lives to Live: Thoreau's Political Reputation in America. Westport, Conn.: Greenwood Press, 1977.
Michaels, Walter Benn. "Walden's False Bottoms." Glyph 1 (1977): 132-49.
Miller, Perry. Nature's Nation. Cambridge: Belknap, 1967.
Miller, Perry. "Thoreau in the Context of International Romanticism." New England Quarterly 24 (1961): 147-59.
Moldenhauer, Joseph J. "Walden and Wordsworth's Guide to the English Lake District." Studies in the American Renaissance (1990): 261-92.
Moller, Mary Elkins. Thoreau in the Human Community. Amherst: University of Massachusetts Press, 1980.
Myerson, Joel, ed. The Cambridge Companion to Henry David Thoreau. New York: Cambridge University Press, 1995.
Myerson, Joel, ed. Critical Essays on Henry David Thoreau's Walden. Boston: G. K. Hall, 1988.
Neufeldt, Leonard. The Economist: Henry Thoreau and Enterprise. New York: Oxford University Press, 1989.
Oehlschlaeger, Fritz, and George Hendrick. Toward the Making of Thoreau's Modern Reputation: Selected Correspondence of S. A. Jones, A. W. Hosmer, H. S. Salt, H. G. O. Blake, and D. Ricketson. Urbana: University of Illinois Press, 1979.
Ogden, Merlene A. Walden, A Concordance. New York: Garland, 1985.
Paul, Sherman. The Shores of America: Thoreau's Inward Exploration. Urbana: University of Illinois Press, 1958.
Paul, Sherman. Thoreau: A Collection of Critical Essays. Englewood Cliffs, N. J.: Prentice-Hall, 1962.
Peck, H. Daniel. Thoreau's Morning Work: Memory and Perception in A Week on the Concord and Merrimack Rivers, The Journal, and Walden. New Haven: Yale University Press, 1990.
Porte, Joel. Emerson and Thoreau: Transcendentalists in Conflict. Middletown, Conn.: Wesleyan University Press, 1966.
Porte, Joel. Emerson and Thoreau: The Contemporary Reviews. New York: Cambridge University Press, 1992.
Richardson, Robert D. Henry Thoreau: A Life of the Mind. Berkeley: University of California Press, 1986.
Robbins, Roland Wells. Discovery at Walden. Illustrated. Folcroft, Pa.: Folcroft Press, 1970.
Robinson, Kenneth Allen. Thoreau and the Wild Appetite. 1957. New York: AMS Press, 1985.
Ruland, Richard, ed. Twentieth Century Interpretations of Walden: A Collection of Critical Essays. Englewood Cliffs, N. J.: Prentice-Hall, 1968.
Sattlemeyer, Robert. "The Remaking of Walden." Writing the American Classics, ed. James Barbour and Tom Quirk. Chapel Hill: University of North Carolina Press, 1990. 53-78.
Sattelmeyer, Robert. "'The True Industry for Poets': Fishing with Thoreau." ESQ 33 (1987): 189-201.
Sattelmeyer, Robert. Thoreau's Reading: A Study in Intellectual History with Bibliographical Catalogue. Princeton: Princeton University Press, 1988.
Sayer, Robert F. New Essays on Walden. New York: Cambridge University Press, 1992.
Sayre, Robert F. Thoreau and the American Indians. Princeton: Princeton University Press, 1977.
Scharnhorst, Gary. Henry David Thoreau: A Case Study in Canonization. Columbia, S. C.: Camden House, 1993.
Schneider, Richard J. Henry David Thoreau. Boston: Twayne, 1987.
Schneider, Richard J. "Reflections in Walden Pond: Thoreau's Optics." ESQ 21 (1975): 65-75.
Schneider, Richard J. "Thoreau and Nineteenth-Century Landscape Painting." ESQ 31 (1985): 67-88.
Seybold, Ethel. Thoreau: The Quest and the Classics. New Haven: Yale University Press, 1951.
Shanley, J. Landon. The Making of Walden, with the Text of the First Edition. Chicago: University of Chicago Press, 1957.
Simon, Myron. "Thoreau and Anarchism." Michigan Quarterly Review 23 (1984): 360-84.
Spiller, Robert E. Four Makers of the American Mind. Durham, N. C.: Duke University Press, 1976.
Stevenson, Robert Louis. "Henry David Thoreau: His Character and Opinions." Familiar Studies of Men and Books. New York: Scribner, 1923.
Teichgraeber, Richard F. Sublime Thoughts/Penny Wisdom: Situating Emerson and Thoreau in the American Market. Baltimore: Johns Hopkins University Press, 1995.
Thoreau, Henry David. Correspondence. Selections. Some Unpublished Letters of Henry D. and Sophia E. Thoreau. Reprint of 1899 ed. Ed. Samuel Arthur Jones. New York: AMS Press, 1985.
Thoreau Society Bulletin, The. Journal.
Thoreau Quarterly, The. Journal.
Thoreau, Henry David. Selections: Thoreau on Writing. Lanham, Md.: University Pub. Associates, 1989.
Thoreau, Henry David. Walden: An Annotated Edition. Foreword and Notes by Walter Harding. Boston: Houghton Mifflin, 1995.
Van Anglen, K. P., ed. Translations/Henry D. Thoreau. Princeton: Princeton University Press, 1986.
Wagenknecht, Edward. Henry David Thoreau: What Manner of Man? Amherst: University of Massachusetts Press, 1981.
West, Michael. "Scatology and Eschatology: The Heroic Dimensions of Thoreau's Wordplay." PMLA 89 (1974): 1043-64.
Wood, Barry. "Thoreau's Narrative Art in 'Civil Disobedience.'" Philological Quarterly 60 (1981): 106-15.