Columbia subject headings:
Harvard subject headings:
American poetry--20th century--History and criticism
Death in literature.
Mysticism in literature.
Negation (Logic) in literature.
Negativity (Philosophy) in literature.
Nothing (Philosophy) in literature.
Princeton subject headings:
American poetry--20th century--History and criticism.
Death in literature.
Myth in literature.
Negation (Logic) in literature.
Negativity (Philosophy) in literature.
Nothing (Philosophy) in literature.