Columbia subject headings:
Folk songs, Russian--History and criticism.
Literature and folklore.
Russian poetry--18th century--History and criticism.
Russian poetry--19th century--History and criticism.
Harvard subject headings:
Folk songs, Russian--History and criticism.
Literature and folklore
Literature and folklore--Russia
Russian poetry--18th century--History and criticism
Russian poetry--19th century--History and criticism
Princeton subject headings:
Folk songs, Russian--History and criticism.
Literature and folklore.
Russian poetry--18th century--History and criticism.
Russian poetry--19th century--History and criticism.