Columbia subject headings:
Harvard subject headings:
Industries--Iran.
Iran--Economic conditions
Steel industry and trade--Iran.
Sugar--Manufacture and refining--Iran.
Weaving--Iran.
Princeton subject headings:
Foundries--Iran.
Industrial location--Iran.
Industrial location.
Industries--Iran.
Petroleum chemicals industry--Iran.
Sugar--Manufacture and refining--Iran.
Textile industry--Iran.