Columbia subject headings:
Cuba--Foreign relations--Soviet Union.
Cuban Missile Crisis, 1962.
Soviet Union--Foreign relations--Cuba.
Harvard subject headings:
Cuba--Foreign relations--Soviet Union.
Cuban Missile Crisis, 1962.
Soviet Union--Foreign relations--Cuba.
Princeton subject headings:
Cuba--Foreign relations--Soviet Union.
Cuban Missile Crisis, 1962.
Soviet Union--Foreign relations--Cuba.