Columbia subject headings:
Communism and society.
Law and socialism.
Soviet Union--Politics and government--Philosophy.
Harvard subject headings:
Communism and society.
Democracy
Democratic centralism--Soviet Union
Perestroĭka.
Socialism--Soviet Union
Socialism.
Soviet Union--Politics and government--1985-1991.
Princeton subject headings:
Communism and society.
Law and socialism.
Soviet Union--Politics and government--Philosophy.