Columbia subject headings:
Merlin (Legendary character)--Romances--History and criticism.
Robert, de Boron, active 13th century. Merlin.
Harvard subject headings:
Arthurian romances--History and criticism.
Merlin (Legendary character)--Romances--History and criticism.
Robert, de Boron, active 13th century. Roman de Merlin
Wizards in literature.
Princeton subject headings:
Merlin (Legendary character)--Legends--History and criticism.
Robert, de Boron, active 13th century. Roman de Merlin.