APA (7th ed.) Citation

Cowdrey, H. E. J. (1970). The Cluniacs and the Gregorian reform. Clarendon P..

Chicago Style (17th ed.) Citation

Cowdrey, H. E. J. The Cluniacs and the Gregorian Reform. Oxford: Clarendon P., 1970.

MLA (9th ed.) Citation

Cowdrey, H. E. J. The Cluniacs and the Gregorian Reform. Clarendon P., 1970.