Niebuhr, R. (1965). Man's nature and his communities: Essays on the dynamics and enigmas of man's personal and social existence. New York: Scribner.
استشهاد بنمط شيكاغوNiebuhr, Reinhold. Man's Nature and His Communities: Essays On the Dynamics and Enigmas of Man's Personal and Social Existence. New York: Scribner, 1965.
MLA استشهادNiebuhr, Reinhold. Man's Nature and His Communities: Essays On the Dynamics and Enigmas of Man's Personal and Social Existence. New York: Scribner, 1965.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.