Cita APA (7a ed.)

Fremantle, A. (1956). The papal encyclicals in their historical context. A Mentor.

Cita Chicago Style (17a ed.)

Fremantle, Anne. The Papal Encyclicals in Their Historical Context. New York: A Mentor, 1956.

Cita MLA (9a ed.)

Fremantle, Anne. The Papal Encyclicals in Their Historical Context. A Mentor, 1956.