APA (7th ed.) Citation

Thoreau, H. D. (1961). A week on the concord and Merrimack Rivers. Signet.

Chicago Style (17th ed.) Citation

Thoreau, Henry David. A Week on the Concord and Merrimack Rivers. Nueva York: Signet, 1961.

MLA (9th ed.) Citation

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