Style de citation APA (7e éd.)

Pius, P. C. C. P. (1932). Encyclical Letter of His Holiness, Pope Pius XI. Washington, D.C..

Style de citation Chicago (17e éd.)

Pius, Pope; Catholic Church. Pope. Encyclical Letter of His Holiness, Pope Pius XI. Washington, D.C., 1932.

Style de citation MLA (8e éd.)

Pius, Pope; Catholic Church. Pope. Encyclical Letter of His Holiness, Pope Pius XI. Washington, D.C., 1932.

Attention : ces citations peuvent ne pas être correctes à 100%.