Cita APA (7a ed.)

Sandburg, C. (1960). Abraham Lincoln: The prairie years and the war years. Dell Publishing.

Cita Chicago Style (17a ed.)

Sandburg, Carl. Abraham Lincoln: The Prairie Years and the War Years. Nueva York: Dell Publishing, 1960.

Cita MLA (9a ed.)

Sandburg, Carl. Abraham Lincoln: The Prairie Years and the War Years. Dell Publishing, 1960.