Cita APA (7a ed.)

Donaldson, E. T. (1949). Piers Plowman: The C-text and its poet. Yale University Press : Geoffrey Cumberlege [etc.].

Cita Chicago Style (17a ed.)

Donaldson, Ethelbert Talbot. Piers Plowman: The C-text and Its Poet. New Haven ; London: Yale University Press : Geoffrey Cumberlege [etc.], 1949.

Cita MLA (9a ed.)

Donaldson, Ethelbert Talbot. Piers Plowman: The C-text and Its Poet. Yale University Press : Geoffrey Cumberlege [etc.], 1949.