APA (7th ed.) Citation

Whitman, W., & Cowley, M. (1959). Walt Whitman's Leaves of grass: The first (1855) edition. Viking Press.

Chicago Style (17th ed.) Citation

Whitman, Walt, and Malcolm Cowley. Walt Whitman's Leaves of Grass: The First (1855) Edition. New York: Viking Press, 1959.

MLA (9th ed.) Citation

Whitman, Walt, and Malcolm Cowley. Walt Whitman's Leaves of Grass: The First (1855) Edition. Viking Press, 1959.