Columbia subject headings:
Civil rights--Soviet Union.
Dissenters--Soviet Union.
Human rights workers--Soviet Union.
Human rights--Soviet Union.
Political persecution--Soviet Union.
Social conflict--Soviet Union.
Harvard subject headings:
Civil rights--Soviet Union
Dissenters--Soviet Union
Social conflict--Soviet Union.
Princeton subject headings:
Civil rights--Soviet Union.
Dissenters--Soviet Union.
Social conflict--Soviet Union.