Koesler, L. (1953). Entrance into the novitiate by clerics in major orders: A historical synopsis and a commentary. Catholic University of America.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Koesler, Leo. Entrance into the Novitiate by Clerics in Major Orders: A Historical Synopsis and a Commentary. Washington: Catholic University of America, 1953.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Koesler, Leo. Entrance into the Novitiate by Clerics in Major Orders: A Historical Synopsis and a Commentary. Catholic University of America, 1953.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.