Columbia subject headings:
Civilization, Modern--1950-
Civilization, Western.
Communism.
Europe, Eastern--Civilization.
Harvard subject headings:
Civilization, Modern--1950-
Civilization, Western.
Communism.
Europe, Eastern--Civilization.
Princeton subject headings:
Civilization, Modern--1950-
Civilization, Western.
Communism.
Europe, Eastern--Civilization.