Columbia subject headings:
Heller, Léonid.
Literature--History and criticism.
Poetics.
Polish literature--History and criticism.
Russian literature--History and criticism.
Harvard subject headings:
Literature--History and criticism
Poetics
Polish literature--History and criticism.
Russian literature--History and criticism
Princeton subject headings:
Literature--History and criticism.
Poetics.
Polish literature--History and criticism.
Russian literature--History and criticism.