Cita APA (7a ed.)

Sandburg, C. (1926). Abraham Lincoln: The prairie years. Harcourt, Brace & company.

Cita Chicago Style (17a ed.)

Sandburg, Carl. Abraham Lincoln: The Prairie Years. New York: Harcourt, Brace & company, 1926.

Cita MLA (8a ed.)

Sandburg, Carl. Abraham Lincoln: The Prairie Years. Harcourt, Brace & company, 1926.