Columbia subject headings:
Telecommunication--Law and legislation--European Union countries.
Telecommunication--Law and legislation--United States.
Telecommunication--Law and legislation.
World Trade Organization.
Harvard subject headings:
Telecommunication policy--European Union countries.
Telecommunication policy--United States
Telecommunication--Law and legislation
Telecommunication--Law and legislation--Europe.
Telecommunication--Law and legislation--United States
World Trade Organization
World Trade Organization. Basic Agreement on Telecommunications Services.
Princeton subject headings:
Telecommunication--Law and legislation.