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.
Deismireacht MLADraper, Ronald P. An Introduction to Twentieth-century Poetry in English. London: Macmillan, 1999.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.