Columbia subject headings:
Iran--Commerce--Handbooks, manuals, etc.
Iran--Economic conditions--1945-1979--Handbooks, manuals, etc.
Harvard subject headings:
Investments, Foreign--Iran.
Iran--Commerce--Handbooks, manuals, etc.
Iran--Commerce.
Iran--Directories.
Iran--Economic conditions--1979---Handbooks, manuals, etc.
Iran--Economic conditions--Statistics.
Princeton subject headings: