Columbia subject headings:
Cuba--Foreign relations--United States.
Cuba--History--Revolution, 1959--Causes.
United States--Foreign relations--Cuba.
Harvard subject headings:
Cuba--Foreign relations--United States.
Cuba--History--Revolution, 1959--Causes.
United States--Foreign relations--Cuba.
Princeton subject headings:
Cuba--Foreign relations--United States.
Cuba--History--Revolution, 1959--Causes.
United States--Foreign relations--Cuba.