Columbia subject headings:
Cuba--History--1959-1990.
History, Modern--1945-1989.
Nineteen seventy-one, A.D.
Nineteen seventy-one, A.D.--Chronology.
Harvard subject headings:
Cuba--History--1959-1990.
History, Modern--1945-1989
Nineteen seventy-one, A.D.
Nineteen seventy-one, A.D.--Chronology.
Princeton subject headings:
Cuba--History--1959-1990.
History, Modern--1945-1989.