Columbia subject headings:
Missions--British Isles--History--Early church, ca. 30-600.
Missions--British Isles--History--Middle Ages, 600-1500.
Harvard subject headings:
England--Church history--449-1066
Great Britain--Church history--449-1066.
Missions--British Isles--History--Early church, ca. 30-600.
Missions--British Isles--History--Middle Ages, 600-1500.
Princeton subject headings:
Missions--British Isles--History--Early church, ca. 30-600.
Missions--British Isles--History--Middle Ages, 600-1500.