Columbia subject headings:
Antitrust law--United States.
Competition--United States.
Regional Bell Operating Companies.
Telecommunication policy--United States.
Telephone--Law and legislation--United States.
Harvard subject headings:
Antitrust law--United States
Competition, International
Competition--United States
Regional Bell Operating Companies.
Telecommunication policy--United States
Telecommunication--United States
Telephone--Law and legislation--United States
Princeton subject headings:
Competition, International.
Competition--United States.
Telecommunication policy--United States.
Telecommunication--United States.