Harper-Bill, C., & Van Houts, E. M. C. (2003). A companion to the Anglo-Norman world. Boydell Press.

Harper-Bill, Christopher, and Elisabeth M. C. Van Houts. A Companion to the Anglo-Norman World. Woodbridge, Suffolk, UK ; Rochester, NY: Boydell Press, 2003.

Harper-Bill, Christopher, and Elisabeth M. C. Van Houts. A Companion to the Anglo-Norman World. Boydell Press, 2003.