Columbia subject headings:
Communism--China.
Communism--Soviet Union.
Communism.
Communist strategy.
World politics--1945-1989.
Harvard subject headings:
Communism--1945-
Communism--China
Communism--Soviet Union
Communist strategy.
World politics--1945-
Princeton subject headings:
Communism--1945-.
Communism--China.
Communism--Soviet Union.
Communist strategy.
World politics--1945-1989.