Columbia subject headings:
Monasticism and religious orders--Rules.
Pachomius, Saint.
Harvard subject headings:
Christian saints--Biography
Monastic and religious life--Early works to 1800.
Monasticism and religious orders--Rules--Early works to 1800.
Pachomius, Saint.
Theodorus, Saint, Abbot, -368.
Princeton subject headings:
Monasticism and religious orders--Rules.