APA-referens (7:e uppl.)

Graham, R. A., & Hartnett, R. C. (1952). Diplomatic relations with the Vatican. America Press.

Chicago-referens (17:e uppl.)

Graham, Robert A., och Robert Clinton Hartnett. Diplomatic Relations with the Vatican. New York: America Press, 1952.

MLA-referens (8:e uppl.)

Graham, Robert A., och Robert Clinton Hartnett. Diplomatic Relations with the Vatican. America Press, 1952.