Columbia subject headings:
Allegory.
American drama--20th century--History and criticism.
Harvard subject headings:
Allegory.
American drama--20th century--History and criticism
Barry, Philip, 1896-1949
Eliot, T. S. (Thomas Stearns), 1888-1965--Criticism and interpretation.
Lawson, John Howard, 1894-1977.
MacLeish, Archibald, 1892-1982
Miller, Arthur, 1915-2005
O'Neill, Eugene, 1888-1953
Rice, Elmer, 1892-1967
Sherwood, Robert E. (Robert Emmet), 1896-1955
Wilder, Thornton, 1897-1975
Williams, Tennessee, 1911-1983.
Princeton subject headings: