Goebel, E. J. (1932). Key to work book in church history. Benziger Bros..
Chicago Style (17. basım) AtıfGoebel, Edmund J. Key to Work Book in Church History. New York: Benziger Bros., 1932.
MLA (8th ed.) AtıfGoebel, Edmund J. Key to Work Book in Church History. Benziger Bros., 1932.
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