Columbia subject headings:
Harvard subject headings:
Abbaye de Cîteaux--History.
Monasticism and religious orders--France--History.
Monasticism and religious orders--History.
Monasticism and religious orders--Italy--History.
Princeton subject headings:
Abbaye de Cîteaux--History.
Bernard, of Clairvaux, Saint, 1090 or 1091-1153.
Cistercians--History.
Monasticism and religious orders--History--Middle Ages, 600-1500.