Columbia subject headings:
Harvard subject headings:
Chaadaev, P. I︠A︡. (Petr I︠A︡kovlevich), 1794-1856
Decembrists.
Pushkin, Aleksandr Sergeevich, 1799-1837--Friends and associates.
Pushkin, Aleksandr Sergeevich, 1799-1837--Political and social views.
Russia--History--December Uprising, 1825.
Princeton subject headings:
Chaadaev, P. I︠A︡. (Petr I︠A︡kovlevich), 1794-1856--Political and social views.
Pushkin, Aleksandr Sergeevich, 1799-1837--Political and social views.
Russia--History--December Uprising, 1825.