APA (7th ed.) Citation

Whitman, W. (2004). The portable Walt Whitman (1a. ed.). Penguin Books.

Chicago Style (17th ed.) Citation

Whitman, Walt. The Portable Walt Whitman. 1a. ed. Nueva York: Penguin Books, 2004.

MLA (9th ed.) Citation

Whitman, Walt. The Portable Walt Whitman. 1a. ed. Penguin Books, 2004.