Columbia subject headings:
Detente.
Europe--Foreign relations--Soviet Union.
Neutrality--Europe--History.
Soviet Union--Foreign relations--1953-1975.
Soviet Union--Foreign relations--Europe.
Harvard subject headings:
Detente.
Europe--Foreign relations--Soviet Union.
Neutrality--Europe--History.
Soviet Union--Foreign relations--1953-1975.
Soviet Union--Foreign relations--Europe.
Princeton subject headings:
Detente.
Europe--Foreign relations--Soviet Union.
Neutrality--Europe--History.
Soviet Union--Foreign relations--1953-1975.
Soviet Union--Foreign relations--Europe.