Donaldson, E. T. (1966). Piers Plowman: The C-text and its poet ([New ed.].). Archon Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDonaldson, Ethelbert Talbot. Piers Plowman: The C-text and Its Poet. [New ed.]. [Hamden, Conn.]: Archon Books, 1966.
एमएलए (9वां संस्करण) प्रशस्ति पत्रDonaldson, Ethelbert Talbot. Piers Plowman: The C-text and Its Poet. [New ed.]. Archon Books, 1966.
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