Columbia subject headings:
Russia (Federation)--Politics and government--1991-
Russia--Politics and government.
Soviet Union--Politics and government.
Harvard subject headings:
Communism--History--20th century
Crimes against humanity--Soviet Union.
Political violence--Russia--History.
Political violence--Soviet Union--History.
Russia--Politics and government
Soviet Union--Politics and government
State-sponsored terrorism--Russia--History.
State-sponsored terrorism--Soviet Union--History.
Princeton subject headings: