APA (7th ed.) Citation

Cowdrey, H. E. J. (1970). The Cluniacs and the Gregorian Reform. At the Clarendon Press.

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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