Hartshorne, H., Stearns, H. R., & Uphaus, W. E. (1933). Standards and trends in religious education. Pub. for the Institute of social and religious research by the Yale university press, H. Milford, Oxford university press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Hartshorne, Hugh, Helen Rachel Stearns, و Willard Edwin Uphaus. Standards and Trends in Religious Education. New Haven, London: Pub. for the Institute of social and religious research by the Yale university press, H. Milford, Oxford university press, 1933.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Hartshorne, Hugh, et al. Standards and Trends in Religious Education. Pub. for the Institute of social and religious research by the Yale university press, H. Milford, Oxford university press, 1933.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.