APA (7th ed.) Citation

Powicke, M. (1962). The thirteenth century, 1216-1307 (2nd ed.). Clarendon.

Chicago Style (17th ed.) Citation

Powicke, Maurice. The Thirteenth Century, 1216-1307. 2nd ed. Oxford: Clarendon, 1962.

MLA (9th ed.) Citation

Powicke, Maurice. The Thirteenth Century, 1216-1307. 2nd ed. Clarendon, 1962.