Columbia subject headings:
Harvard subject headings:
Data transmission systems--Law and legislation--United States.
Data transmission systems--Law and legislation.
Foreign trade regulation--United States.
Foreign trade regulation.
Telecommunication--Law and legislation
Telecommunication--Law and legislation--United States
Princeton subject headings:
Data transmission systems--Law and legislation--United States.
Data transmission systems--Law and legislation.
Foreign trade regulation--United States.
Foreign trade regulation.
Telecommunication--Law and legislation--United States.
Telecommunication--Law and legislation.