APA (7th ed.) Citation

Whitman, W. (1950). Leaves of grass, and selected prose. Modern Library.

Chicago Style (17th ed.) Citation

Whitman, Walt. Leaves of Grass, and Selected Prose. New York: Modern Library, 1950.

MLA (9th ed.) Citation

Whitman, Walt. Leaves of Grass, and Selected Prose. Modern Library, 1950.