Columbia subject headings:
Harvard subject headings:
Communists--Soviet Union--Biography
Revolutionaries--Soviet Union--Biography
Sverdlov, I︠A︡kov Mikhaĭlovich, 1885-1919.
Princeton subject headings:
Communists--Soviet Union--Biography.
Revolutionaries--Soviet Union--Biography.
Sverdlov, I︠A︡kov Mikhaĭlovich, 1885-1919.