Columbia subject headings:
Elections--Baltic States.
Elections--Soviet Union.
Presidents--Baltic States--Election.
Soviet Union--Politics and government.
Harvard subject headings:
Elections--Former Soviet republics.
Presidents--Former Soviet republics--Election.
Referendum--Former Soviet republics.
Referendum--Soviet Union.
Princeton subject headings:
Elections--Former Soviet republics.
Presidents--Former Soviet republics--Election.
Referendum--Former Soviet republics.
Referendum--Soviet Union.