Cita APA (7a ed.)

Guelzo, A. C. (2009). Abraham Lincoln as a Man of Ideas. Southern Illinois University Press.

Cita Chicago Style (17a ed.)

Guelzo, Allen C. Abraham Lincoln as a Man of Ideas. Carbondale: Southern Illinois University Press, 2009.

Cita MLA (8a ed.)

Guelzo, Allen C. Abraham Lincoln as a Man of Ideas. Southern Illinois University Press, 2009.