APA (7e ed.) Bronvermelding

Pius, P. C. C. P. (1937). The church in Germany, encyclical letter of His Holiness, Pope Pius XI (Vatican Press translation) issued March 14, 1937. Washington, D.C..

Chicago (17e ed.) Bronvermelding

Pius, Pope; Catholic Church. Pope. The Church in Germany, Encyclical Letter of His Holiness, Pope Pius XI (Vatican Press Translation) Issued March 14, 1937. Washington, D.C., 1937.

MLA (8e ed.) Bronvermelding

Pius, Pope; Catholic Church. Pope. The Church in Germany, Encyclical Letter of His Holiness, Pope Pius XI (Vatican Press Translation) Issued March 14, 1937. Washington, D.C., 1937.