Columbia subject headings:
Economics--Religious aspects--Christianity--History--To 1500.
Europe--Church history--600-1500.
Friars--Europe--History--To 1500.
Monasticism and religious orders--Europe--History--Middle Ages, 600-1500.
Harvard subject headings:
Christianity--Economic aspects--Europe--History--To 1500.
Friars--Europe--History--To 1500.
Monasteries--Economic aspects--Europe--History--To 1500.
Monasticism and religious orders--Europe--History--Middle Ages, 600-1500.
Princeton subject headings: