Columbia subject headings:
Telecommunication policy--United States--States--Case studies.
Telecommunication policy--United States--States.
Telephone--Government policy--United States--States--Case studies.
Telephone--Government policy--United States--States.
Harvard subject headings:
Telecommunication policy--United States--States--Case studies.
Telecommunication policy--United States--States.
Telephone--Government policy--United States--States--Case studies.
Telephone--Government policy--United States--States.
Princeton subject headings:
Telecommunication policy--United States--States--Case studies.
Telecommunication policy--United States--States.
Telephone--Government policy--United States--States--Case studies.
Telephone--Government policy--United States--States.