Columbia subject headings:
Benedict, Saint, Abbot of Monte Cassino. Regula.
Bollandists.
Cistercians--History--Sources.
Maurists.
Monumenta Germaniae historica.
Rerum Britannicarum medii aevi scriptores.
Harvard subject headings:
Benedict, Saint, Abbot of Monte Cassino. Regula.
Bollandists.
Cistercians--History--Sources.
Maurists.
Monumenta Germaniae historica.
Rerum Britannicarum medii aevi scriptores.
Princeton subject headings: