Columbia subject headings:
Lancelot (Legendary character)--Romances--History and criticism.
Lancelot (Prose romance)--History and criticism.
Marvelous, The, in literature.
Harvard subject headings:
Lancelot (Legendary character)--Romances--History and criticism.
Literature, Medieval--History and criticism
Marvelous, The, in literature.
Poetry, Medieval--History and criticism.
Princeton subject headings: