Columbia subject headings:
Mythology in literature.
Tolkien, J. R. R. (John Ronald Reuel), 1892-1973--Criticism and interpretation.
Harvard subject headings:
Tolkien, J. R. R. (John Ronald Reuel), 1892-1973--Criticism and interpretation.
Tolkien, J. R. R. (John Ronald Reuel), 1892-1973--Knowledge--Folklore, mythology.
Princeton subject headings:
Mythology in literature.
Tolkien, J. R. R. (John Ronald Reuel), 1892-1973.