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-referens (17:e uppl.)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-referens (8:e uppl.)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.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.