Cita APA

Catholic church. Pope, 1958 (Joannes XXIII), & Gibbons, W. J. 1. (1962). Mater et magistra, encyclical letter; Christianity and social progress. Paulist Press.

Citación estilo Chicago

Catholic church. Pope, 1958 (Joannes XXIII), and William Joseph 1912 Gibbons. Mater Et Magistra, Encyclical Letter; Christianity and Social Progress. Glen Rock, N. J: Paulist Press, 1962.

Cita MLA

Catholic church. Pope, 1958 (Joannes XXIII), and William Joseph 1912 Gibbons. Mater Et Magistra, Encyclical Letter; Christianity and Social Progress. Paulist Press, 1962.