Johnson, P. D. (1981). Prayer, patronage, and power: The abbey of la Trinite, Vendome, 1032 - 1187. New York University.

Johnson, Penelope D. Prayer, Patronage, and Power: The Abbey of La Trinite, Vendome, 1032 - 1187. New York: New York University, 1981.

Johnson, Penelope D. Prayer, Patronage, and Power: The Abbey of La Trinite, Vendome, 1032 - 1187. New York University, 1981.