Columbia subject headings:
Existentialism in literature.
Fiction--History and criticism.
Naturalism in literature.
Nihilism in literature.
Social realism in literature.
Harvard subject headings:
Existentialism in literature.
Fiction--History and criticism
Naturalism in literature.
Nihilism in literature.
Social realism in literature.
Princeton subject headings:
Existentialism in literature.
Fiction--History and criticism.
Naturalism in literature.
Nihilism in literature.
Social realism in literature.