Draper, R. P. (1999). An introduction to twentieth-century poetry in English. London: Macmillan.
Trích dẫn kiểu ChicagoDraper, Ronald P. An Introduction to Twentieth-century Poetry in English. London: Macmillan, 1999.
MLA引文Draper, Ronald P. An Introduction to Twentieth-century Poetry in English. London: Macmillan, 1999.
警告：这些引文格式不一定是100％准确.