Columbia subject headings:
Monasticism and religious orders--History--Early church, ca. 30-600.
Spiritual life--Catholic Church.
Harvard subject headings:
Monasticism and religious orders--History--Early church, ca. 30-600.
Spiritual life--Catholic Church
Spiritual life.
Princeton subject headings:
Monastic and religious life--History--Early church, ca. 30-600.
Monasticism and religious orders--History--Early church, ca. 30-600.