Columbia subject headings:
Telecommunication equipment industry.
Harvard subject headings:
Market surveys--Europe.
Market surveys--United States.
Telecommunication equipment industry--Europe.
Telecommunication equipment industry--United States.
Telecommunication--Europe
Telecommunication--United States
Princeton subject headings:
Market surveys--Europe.
Market surveys--United States.
Telecommunication equipment industry--Europe.
Telecommunication equipment industry--United States.
Telecommunication--Europe.
Telecommunication--United States.