Straw, C., & Gregor, I. (1988). Gregory the Great: Perfection in imperfection. The transformation of the classical heritage.
芝加哥风格引文Straw, Carole, 与 I. Gregor. "Gregory the Great: Perfection in Imperfection." The Transformation of the Classical Heritage 1988.
MLA引文Straw, Carole, 与 I. Gregor. "Gregory the Great: Perfection in Imperfection." The Transformation of the Classical Heritage, 1988.
警告：这些引文格式不一定是100％准确.