Lynn, R. H. (1964). The divine comedy, v.2: The Purgatorio ; notes. Cliff's Notes.
芝加哥风格引文Lynn, Robert H. The Divine Comedy, V.2: The Purgatorio ; Notes. Lincoln, Neb: Cliff's Notes, 1964.
MLA引文Lynn, Robert H. The Divine Comedy, V.2: The Purgatorio ; Notes. Cliff's Notes, 1964.
警告：这些引文格式不一定是100％准确.