Cita APA (7a ed.)

Sandburg, C. (1939). Abraham Lincoln: The war years. Harcourt, Brace & company.

Cita Chicago Style (17a ed.)

Sandburg, Carl. Abraham Lincoln: The War Years. New York: Harcourt, Brace & company, 1939.

Cita MLA (8a ed.)

Sandburg, Carl. Abraham Lincoln: The War Years. Harcourt, Brace & company, 1939.