Columbia subject headings:
Monastic and religious life--History--Early church, ca. 30-600.
Monasticism and religious orders--History--Early church, ca. 30-600--Rules.
Harvard subject headings:
Benedict, Saint, Abbot of Monte Cassino. Regula.
Church history--Primitive and early church, ca. 30-600
Fathers of the church.
Monasticism and religious orders--Rules.
Princeton subject headings: