Columbia subject headings:
Characters and characteristics in literature.
Comparative literature--Polish and Russian.
Comparative literature--Russian and Polish.
Polish literature--19th century--History and criticism.
Russian literature--19th century--History and criticism.
Harvard subject headings:
Comparative literature--Polish and Russian.
Comparative literature--Russian and Polish.
Polish literature--19th century--History and criticism.
Russian literature--19th century--History and criticism
Princeton subject headings: