Columbia subject headings:
Harvard subject headings:
American Telephone and Telegraph Company.
Long distance telephone service--United States.
Telecommunication policy--United States
Telecommunication--Deregulation--United States
Telephone companies--United States.
United States. Federal Communications Commission.
Princeton subject headings:
American Telephone and Telegraph Company.
Telecommunication policy--United States.
Telephone companies--United States.
United States. Federal Communications Commission