The letters and charters of Gilbert Foliot, Abbot of Gloucester, 1139-48, Bishop of Hereford, 1148-63, and London, 1163-87 /
Foliot, Gilbert,-1188.
Brooke, Z. N.(Zachary Nugent),1883-1946.
Morey, Dom Adrian.
Brooke, Christopher,1927-2015.
Cambridge,
1967.