APA Style

WALSH, Michael J.. (2007). The Popes: 50 celebrated occupants the throne of St. Peter . London: Quercus.

Chicago Style

WALSH, Michael J.. The Popes: 50 celebrated occupants the throne of St. Peter. London: Quercus, 2007. Text.

MLA Style

WALSH, Michael J.. The Popes: 50 celebrated occupants the throne of St. Peter. London: Quercus, 2007. Text.

Turabian Style

WALSH, Michael J.. The Popes: 50 celebrated occupants the throne of St. Peter. London: Quercus, 2007. Print.