APA (7e ed.) Bronvermelding

Pfiffner, J. P. (1994). The modern presidency. St. Martin's Press.

Chicago (17e ed.) Bronvermelding

Pfiffner, James P. The Modern Presidency. New York: St. Martin's Press, 1994.

MLA (9e ed.) Bronvermelding

Pfiffner, James P. The Modern Presidency. St. Martin's Press, 1994.