Columbia subject headings:
Iran--Relations--United States--Sources.
Iran--Relations--United States.
United States--Relations--Iran--Sources.
United States--Relations--Iran.
Harvard subject headings:
Iran--Relations--United States--Sources.
Iran--Relations--United States.
United States--Relations--Iran--Sources.
United States--Relations--Iran.
Princeton subject headings:
Iran--Relations--United States--Sources.
Iran--Relations--United States.
United States--Relations--Iran--Sources.
United States--Relations--Iran.