APA (7th ed.) Citation

Peyrefitte, R. (1957). The keys of St. Peter. Secker & Warburg.

Chicago Style (17th ed.) Citation

Peyrefitte, Roger. The Keys of St. Peter. Lond.: Secker & Warburg, 1957.

MLA (8th ed.) Citation

Peyrefitte, Roger. The Keys of St. Peter. Secker & Warburg, 1957.

Warning: These citations may not always be 100% accurate.