Columbia subject headings:
Church architecture--Europe--History--To 1500.
Europe--Church history.
Monasteries--Europe--History.
Monasticism and religious orders--Europe--History.
Harvard subject headings:
Church architecture--Europe--History--To 1500.
Europe--Church history.
Monasteries--Europe--History.
Monasticism and religious orders--Europe--History--Middle Ages, 600-1500.
Princeton subject headings:
Church architecture--Europe--History--To 1500.
Europe--Church history.
Monasteries--Europe--History.
Monasticism and religious orders--Europe--History.