Cronin, J. F. (1950). Catholic social principles: The social teaching of the Catholic Church applied to American economic life. Bruce Pub. Co.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Cronin, John F. Catholic Social Principles: The Social Teaching of the Catholic Church Applied to American Economic Life. Milwaukee: Bruce Pub. Co, 1950.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Cronin, John F. Catholic Social Principles: The Social Teaching of the Catholic Church Applied to American Economic Life. Bruce Pub. Co, 1950.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.