Columbia subject headings:
Russian language--History.
Harvard subject headings:
Pushkin, Aleksandr Sergeevich, 1799-1837--Criticism and interpretation.
Pushkin, Aleksandr Sergeevich, 1799-1837--Language.
Russian language--History
Princeton subject headings:
Pushkin, Aleksandr Sergeevich, 1799-1837--Criticism and interpretation.
Pushkin, Aleksandr Sergeevich, 1799-1837--Language.
Russian language--History.