APA aipamena

Whitman, W., & Sandburg, C. (1921). Leaves of grass. New York: Modern Library.

Chicago Style aipamena

Whitman, Walt, και Carl Sandburg. Leaves of Grass. New York: Modern Library, 1921.

MLA aipamena

Whitman, Walt, και Carl Sandburg. Leaves of Grass. New York: Modern Library, 1921.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.