Columbia subject headings:
Pushkin, Aleksandr Sergeevich, 1799-1837--Friends and associates.
Russian literature--19th century.
Harvard subject headings:
Pushkin, Aleksandr Sergeevich, 1799-1837--Friends and associates.
Russian literature--19th century
Princeton subject headings:
Pushkin, Aleksandr Sergeevich, 1799-1837--Friends and associates.
Russian literature--19th century.