Columbia subject headings:
Harvard subject headings:
Communism--Soviet Union
Communism--United States--1917-
Soviet Union--Foreign relations--1945-1991.
Soviet Union--Foreign relations--United States.
United States--Foreign relations--1945-
United States--Foreign relations--Soviet Union.
Princeton subject headings:
Communism--Soviet Union.
Communism--United States.
Soviet Union--Foreign relations--1945-1991.
Soviet Union--Foreign relations--United States.
United States--Foreign relations--1945-1989.
United States--Foreign relations--Soviet Union.