Gaya APA

Kittler, G, D. (1960). The Papal Princes: a History of the Sacred College of Cardinals (Cet. 1.--). New York: Dell Publishing.

Gaya MLA

Kittler, Glenn, D.. "The Papal Princes: a History of the Sacred College of Cardinals". Cet. 1.-- New York: Dell Publishing, 1960. Text.