Columbia subject headings:
American literature--History and criticism.
Doubles in literature.
Dualism in literature.
English literature--History and criticism.
Split self in literature.
Harvard subject headings:
American literature--History and criticism
Doubles in literature.
English literature--History and criticism
Literature--Psychology
Multiple personality in literature.
Split self in literature.
Princeton subject headings:
American literature--History and criticism.
Doubles in literature.
Dualism in literature.
English literature--History and criticism.
Split self in literature.