Columbia subject headings:
Cable television--Law and legislation--United States.
Telecommunication--Law and legislation--United States.
Telephone--Law and legislation--United States.
Harvard subject headings:
Cable television--Law and legislation--United States
Telecommunication--Law and legislation--United States
Telephone--Law and legislation--United States
Princeton subject headings:
Cable television--Law and legislation--United States.
Telecommunication--Law and legislation--United States.
Telephone--Law and legislation--United States.