Columbia subject headings:
Casebooks (Law)
Public utilities--Law and legislation--United States--Cases.
Telecommunication--Law and legislation--United States--Cases.
Transportation--Law and legislation--United States--Cases.
Harvard subject headings:
Public utilities--Law and legislation--United States--Cases.
Telecommunication--Law and legislation--United States--Cases.
Transportation--Law and legislation--United States--Cases.
Princeton subject headings: