Cita APA (7a ed.)

Guelzo, A. C. (2009). Lincoln: A very short introduction. Oxford University Press.

Cita Chicago Style (17a ed.)

Guelzo, Allen C. Lincoln: A Very Short Introduction. Oxford ; New York: Oxford University Press, 2009.

Cita MLA (9a ed.)

Guelzo, Allen C. Lincoln: A Very Short Introduction. Oxford University Press, 2009.