Confraternity of Christian Doctrine. (1941). Suggestions for the apostolate to non-Catholics. National Center of the Confraternity of Christian Doctrine.
Chicago-referens (17:e uppl.)Confraternity of Christian Doctrine. Suggestions for the Apostolate to Non-Catholics. Washington, D.C.: National Center of the Confraternity of Christian Doctrine, 1941.
MLA-referens (8:e uppl.)Confraternity of Christian Doctrine. Suggestions for the Apostolate to Non-Catholics. National Center of the Confraternity of Christian Doctrine, 1941.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.