Columbia subject headings:
Arthur, King.
Bran, Son of Llyr.
Grail.
Mabinogion.
Mythology, Welsh.
Romances, English--History and criticism.
Harvard subject headings:
Arthur, King.
Bran, son of Llyr.
Grail
Mabinogion.
Mythology, Welsh.
Romances, English--History and criticism.
Princeton subject headings: