APA (7th ed.) Citation
Kelly, J. (1986). The oxford dictionary of Popes (ed.). Oxford University Press.
Chicago Style (17th ed.) Citation
Kelly, J.N.D. The Oxford Dictionary of Popes. ed. Oxford: Oxford University Press, 1986.
MLA (9th ed.) Citation
Kelly, J.N.D. The Oxford Dictionary of Popes. ed. Oxford University Press, 1986.
Warning: These citations may not always be 100% accurate.