Columbia subject headings:
Iran--Foreign relations--1941-1979.
Iran--Foreign relations--1979-1997.
Iran--Foreign relations--United States.
United States--Foreign relations--1945-1989.
United States--Foreign relations--Iran.
Harvard subject headings:
Iran--Foreign relations--1941-1979.
Iran--Foreign relations--1979-1997.
Iran--Foreign relations--United States.
United States--Foreign relations--1945-
United States--Foreign relations--1945-1989.
United States--Foreign relations--Iran.
Princeton subject headings:
Iran--Foreign relations--1941-1979.
Iran--Foreign relations--1979-1997.
Iran--Foreign relations--United States.
United States--Foreign relations--1945-1989.
United States--Foreign relations--Iran.