Guzzardo, J. J. (1989). Textual history and the Divine comedy. Scripta Humanistica.
芝加哥风格引文Guzzardo, John J. Textual History and the Divine Comedy. Potomac, Md., U.S.A.: Scripta Humanistica, 1989.
MLA引文Guzzardo, John J. Textual History and the Divine Comedy. Scripta Humanistica, 1989.
警告：这些引文格式不一定是100％准确.