APA-referens (7:e uppl.)
Zwemer, M. S. (1935). The origin of religion: Based on the Smyth lectures delivered at Columbia theological seminary, Decatur, Georgia, 1935. Cokesbury Press.
Chicago-referens (17:e uppl.)
Zwemer, M. Samuel. The Origin of Religion: Based on the Smyth Lectures Delivered at Columbia Theological Seminary, Decatur, Georgia, 1935. Nashville: Cokesbury Press, 1935.
MLA-referens (9:e uppl.)
Zwemer, M. Samuel. The Origin of Religion: Based on the Smyth Lectures Delivered at Columbia Theological Seminary, Decatur, Georgia, 1935. Cokesbury Press, 1935.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.