Cita APA (7a ed.)

Gontard, F. (1964). The Chair of Peter: A history of the papacy. Holt, Rinehart and Winston.

Cita Chicago Style (17a ed.)

Gontard, Friedrich. The Chair of Peter: A History of the Papacy. New York [etc.]: Holt, Rinehart and Winston, 1964.

Cita MLA (9a ed.)

Gontard, Friedrich. The Chair of Peter: A History of the Papacy. Holt, Rinehart and Winston, 1964.