Lincoln a very short introduction
MLA
Guelzo, Allen C. Lincoln: a Very Short Introduction. Very Short Introductions. New York: Oxford University Press, 2009
APA, 7th edition
Guelzo, A. C. (2009). Lincoln: a very short introduction. Very short introductions. New York: Oxford University Press
Chicago, 17th edition
Guelzo, Allen C. Lincoln: a very short introduction. Very short introductions. New York: Oxford University Press, 2009