APA (7th ed.) Citation

Kelly, J. N. D. (2010). The Oxford dictionary of popes (2. ed.). Oxford Univ. Press.

Chicago Style (17th ed.) Citation

Kelly, John N. D. The Oxford Dictionary of Popes. 2. ed. Oxford [u.a.]: Oxford Univ. Press, 2010.

MLA (9th ed.) Citation

Kelly, John N. D. The Oxford Dictionary of Popes. 2. ed. Oxford Univ. Press, 2010.