Columbia subject headings:
Harvard subject headings:
Danilov, I. V. (Igorʹ Valerʹevich), 1967---Journeys--Africa.
Gannibal, Abram Petrovich, 1697?-1781--Sources.
Pushkin, Aleksandr Sergeevich, 1799-1837--Family--Sources.
Princeton subject headings:
Danilov, I. V. (Igorʹ Valerʹevich), 1967---Travel--Africa.
Gannibal, Abram Petrovich, 1697?-1781--Sources.
Generals--Russia--Biography.
Pushkin, Aleksandr Sergeevich, 1799-1837--Family--Sources.