Gregory I, P. (1908). A Homily of St. Gregory the Great on the Pastoral Office. New York.
Chicago Style (17th ed.) CitationGregory I, Pope. A Homily of St. Gregory the Great on the Pastoral Office. New York, 1908.
MLA引文Gregory I, Pope. A Homily of St. Gregory the Great on the Pastoral Office. New York, 1908.
警告:這些引文格式不一定是100%准確.