APA (7th ed.) Citation

Coppa, F. J. (1998). The modern papacy since 1789. Longman.

Chicago Style (17th ed.) Citation

Coppa, Frank J. The Modern Papacy Since 1789. London [etc.]: Longman, 1998.

MLA (9th ed.) Citation

Coppa, Frank J. The Modern Papacy Since 1789. Longman, 1998.

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