Columbia subject headings:
Empson, William, 1906-1984.
Lawrence, D. H. (David Herbert), 1885-1930.
Tolkien, J. R. R. (John Ronald Reuel), 1892-1973.
Harvard subject headings:
Courage in literature.
Empson, William, 1906-1984--Criticism and interpretation.
Heroes in literature
Lawrence, D. H. (David Herbert), 1885-1930
Lawrence, D. H. (David Herbert), 1885-1930--Criticism and interpretation.
Tolkien, J. R. R. (John Ronald Reuel), 1892-1973
Tolkien, J. R. R. (John Ronald Reuel), 1892-1973--Criticism and interpretation.
Princeton subject headings:
Courage in literature.
Empson, William, 1906---Criticism and interpretation.
Empson, William.
Heroes in literature.
Lawrence, D. H. (David Herbert), 1885-1930--Criticism and interpretation.
Lawrence, D. H. (David Herbert), 1885-1930.
Tolkien, J. R. R. (John Ronald Reuel), 1892-1973--Criticism and interpretation.
Tolkien, J. R. R. (John Ronald Reuel), 1892-1973.