Cita APA (7a ed.)
Iglesia católica Papa, Fremantle, A., & Weigel, G. (1959). The papal encyclicals in their historical context. New American Library of World Literature.
Cita Chicago Style (17a ed.)
Iglesia católica Papa, Anne Fremantle, y Gustave Weigel. The Papal Encyclicals in Their Historical Context. New York: New American Library of World Literature, 1959.
Cita MLA (9a ed.)
Iglesia católica Papa, et al. The Papal Encyclicals in Their Historical Context. New American Library of World Literature, 1959.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.