Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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