Columbia subject headings:
Harvard subject headings:
Arthur, King.
Arthurian romances--Sources--Early works to 1800.
Britons--Early works to 1800.
Great Britain--History--To 1066.
Great Britain--History--To 449.
Legends--Great Britain--Early works to 1800.
Legends--Wales
Merlin (Legendary character)--Legends.
Princeton subject headings:
Arthur, King
Great Britain--History--To 449.
Legends, Celtic.
Merlin (Legendary character)--Legends.