APA način citiranja

Sandburg, C., & Mitgang, H. ,. (1968). The Letters of Carl Sandburg. New York: Harcourt, Brace & World.

Čikaški stil citiranja

Sandburg, Carl., i Herbert Mitgang. The Letters of Carl Sandburg. New York: Harcourt, Brace & World, 1968.

MLA način citiranja

Sandburg, Carl., i Herbert Mitgang. The Letters of Carl Sandburg. New York: Harcourt, Brace & World, 1968.