Columbia subject headings:
Ecocriticism.
Middle Earth (Imaginary place)
Tolkien, J. R. R. (John Ronald Reuel), 1892-1973--Criticism and interpretation.
Tolkien, J. R. R. (John Ronald Reuel), 1892-1973--Language.
Tolkien, J. R. R. (John Ronald Reuel), 1892-1973. Lord of the rings.
Harvard subject headings:
Ecocriticism.
Ecology in literature.
English literature--20th century--History and criticism
Middle Earth (Imaginary place)
Tolkien, J. R. R. (John Ronald Reuel), 1892-1973--Criticism and interpretation.
Tolkien, J. R. R. (John Ronald Reuel), 1892-1973--Language.
Tolkien, J. R. R. (John Ronald Reuel), 1892-1973. Lord of the rings.
Princeton subject headings:
Ecocriticism.
Middle Earth (Imaginary place)
Tolkien, J. R. R. (John Ronald Reuel), 1892-1973--Criticism and interpretation.
Tolkien, J. R. R. (John Ronald Reuel), 1892-1973--Language.
Tolkien, J. R. R. (John Ronald Reuel), 1892-1973. Lord of the rings.