Columbia subject headings:
Dissenters--Soviet Union.
Soviet Union--Civilization.
Soviet Union--Intellectual life--1970-1991.
Soviet Union--Politics and government.
Underground literature--Soviet Union.
Harvard subject headings:
Soviet Union--Civilization.
Soviet Union--Intellectual life--1970-1991.
Underground literature--Soviet Union.
Princeton subject headings:
Dissenters--Soviet Union.
Soviet Union--Politics and government.
Underground literature--Soviet Union.