Citazione APA

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

Stile di citazione Chicago

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

Citazione MLA

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