Guelzo, A. C., & Lind, M. (2009). Abraham Lincoln as a man of ideas. Southern Illinois University Press.
Cita Chicago (17th ed.)Guelzo, Allen C., i Michael Lind. Abraham Lincoln as a Man of Ideas. Carbondale: Southern Illinois University Press, 2009.
Cita MLA (9th ed.)Guelzo, Allen C., i Michael Lind. Abraham Lincoln as a Man of Ideas. Southern Illinois University Press, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.