Columbia subject headings:
O'Neill, Eugene, 1888-1953.
Harvard subject headings:
Alcoholism in literature.
American drama--Psychological aspects
Death in literature.
Dreams in literature.
O'Neill, Eugene, 1888-1953
O'Neill, Eugene, 1888-1953--Characters.
O'Neill, Eugene, 1888-1953--Themes, motives.
Princeton subject headings:
O'Neill, Eugene, 1888-1953.