LYNN, R. H. (1964). The divine comedy notes: Vo. II purgatorio. Cliff's notes.
芝加哥风格引文LYNN, Robert H. The Divine Comedy Notes: Vo. II Purgatorio. Nebraska: Cliff's notes, 1964.
MLA引文LYNN, Robert H. The Divine Comedy Notes: Vo. II Purgatorio. Cliff's notes, 1964.
警告：这些引文格式不一定是100％准确.