Columbia subject headings:
English fiction--20th century--History and criticism.
Fantasy fiction, English--History and criticism.
Lewis, C. S. (Clive Staples), 1898-1963--Political and social views.
Social problems in literature.
Tolkien, J. R. R. (John Ronald Reuel), 1892-1973--Political and social views.
Harvard subject headings:
English fiction--20th century--History and criticism
Fantasy fiction, English--History and criticism.
Lewis, C. S. (Clive Staples), 1898-1963--Fictional works.
Lewis, C. S. (Clive Staples), 1898-1963--Political and social views.
Social problems in literature.
Tolkien, J. R. R. (John Ronald Reuel), 1892-1973--Political and social views.
Princeton subject headings:
English fiction--20th century--History and criticism.
Fantasy fiction, English--History and criticism.
Lewis, C. S. (Clive Staples), 1898-1963--Political and social views.
Social problems in literature.
Tolkien, J. R. R. (John Ronald Reuel), 1892-1973--Political and social views.