APA (7th ed.) Citation

Thoreau, H. D. (1961). A week on the Concord and Merrimack Rivers. Houghton Mifflin.

Chicago Style (17th ed.) Citation

Thoreau, Henry David. A Week on the Concord and Merrimack Rivers. Boston: Houghton Mifflin, 1961.

MLA (9th ed.) Citation

Thoreau, Henry David. A Week on the Concord and Merrimack Rivers. Houghton Mifflin, 1961.