Kane, G. (1965). Piers Plowman: The evidence for authorship. University of London, Athlone Press.
Dyfyniad Arddull ChicagoKane, George. Piers Plowman: The Evidence for Authorship. London: University of London, Athlone Press, 1965.
Dyfyniad MLAKane, George. Piers Plowman: The Evidence for Authorship. University of London, Athlone Press, 1965.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.