Columbia subject headings:
Iran--Foreign relations--20th century.
Iran--Foreign relations--21st century.
Iran--Politics and government--20th century.
Iran--Politics and government--21st century.
Islam and world politics.
Harvard subject headings:
Iran--Foreign relations--20th century.
Iran--Foreign relations--21st century.
Iran--Politics and government--20th century.
Iran--Politics and government--21st century.
Islam and world politics.
Princeton subject headings:
Iran--Foreign relations--20th century.
Iran--Foreign relations--21st century.
Iran--Politics and government--20th century.
Iran--Politics and government--21st century.
Islam and world politics.