Confraternity of Christian Doctrine. (1941). Suggestions for the apostolate to non-Catholics. National Center of the Confraternity of Christian Doctrine.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Confraternity of Christian Doctrine. Suggestions for the Apostolate to Non-Catholics. Washington, D.C.: National Center of the Confraternity of Christian Doctrine, 1941.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Confraternity of Christian Doctrine. Suggestions for the Apostolate to Non-Catholics. National Center of the Confraternity of Christian Doctrine, 1941.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.