APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Cowdrey, Herbert Edward John. The Cluniacs and the Gregorian Reform. 1970.

MLA (9th ed.) Citation

Cowdrey, Herbert Edward John. The Cluniacs and the Gregorian Reform. 1970.

Warning: These citations may not always be 100% accurate.