Feudal England: Historical Studies on the Eleventh and Twelfth Centuries

Domesday Book and Beyond: Three Essays in the Early History of England

The Early Norman Castles of the British Isles.

The Reign of William Rufus and the Accession of Henry the First, Volume 1 (of 2)

The Reign of William Rufus and the Accession of Henry the First, Volume 2 (of 2)