Columbia subject headings:
Intelligence service--United States--History--20th century.
Iran-Contra Affair, 1985-1990.
United States--Foreign relations--1981-1989.
United States. Central Intelligence Agency.
Harvard subject headings:
Intelligence service--United States--History--20th century
Iran-Contra Affair, 1985-1990.
United States--Foreign relations--1981-1989.
United States--Foreign relations--1989-
United States. Central Intelligence Agency
Princeton subject headings:
Intelligence service--United States--History--20th century.
Iran-Contra Affair, 1985-1990.
United States--Foreign relations--1981-.
United States. Central Intelligence Agency