Columbia subject headings:
Harvard subject headings:
Iran--History--Revolution, 1979.
Iran--Politics and government--1979-
Princeton subject headings:
Iran--History--Pahlavi dynasty, 1925-1979.
Iran--History--Revolution, 1979.
Iran--Politics and government--1979-1997.
Iran--Politics and government--1997-
Iran--Social conditions--20th century.
Revolutions--Social aspects--Iran.
Urbanization--Iran.