Jewish Theological Seminary of America. Institute for Religious and Social Studies & Hopper, S. R. (1952). Spiritual problems in contemporary literature: A series of addresses and discussions. Institute for Religious and Social Studies; distributed by Harper.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Jewish Theological Seminary of America. Institute for Religious and Social Studies و Stanley Romaine Hopper. Spiritual Problems in Contemporary Literature: A Series of Addresses and Discussions. New York: Institute for Religious and Social Studies; distributed by Harper, 1952.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Jewish Theological Seminary of America. Institute for Religious and Social Studies و Stanley Romaine Hopper. Spiritual Problems in Contemporary Literature: A Series of Addresses and Discussions. Institute for Religious and Social Studies; distributed by Harper, 1952.