Cathédrale de Hereford
- Cathedrals and Churches of England. Crown Books, Guildford (Royaume-Uni), 1985.
- (1988): The Former Romanesque High Vault in the Presbytery of Hereford Cathedral. Dans: Journal of the Society of Architectural Historians, v. 47, n. 2 (juin 1988), pp. 185-189.