APA-referens (7:e uppl.)

Donaldson, E. T. (1966). Piers Plowman: The C-text and its poet ([New ed.].). Archon Books.

Chicago-referens (17:e uppl.)

Donaldson, Ethelbert Talbot. Piers Plowman: The C-text and Its Poet. [New ed.]. [Hamden, Conn.]: Archon Books, 1966.

MLA-referens (9:e uppl.)

Donaldson, Ethelbert Talbot. Piers Plowman: The C-text and Its Poet. [New ed.]. Archon Books, 1966.