APA (7th ed.) Citation

Barber, R. (1974). The knight and chivalry (2. ed.). Boydell Press.

Chicago Style (17th ed.) Citation

Barber, Richard. The Knight and Chivalry. 2. ed. Ipswich: Boydell Press, 1974.

MLA (9th ed.) Citation

Barber, Richard. The Knight and Chivalry. 2. ed. Boydell Press, 1974.