Columbia subject headings:
Antitrust law--United States.
Baseball--Economic aspects--United States.
Baseball--Law and legislation--United States.
Harvard subject headings:
Antitrust law--United States
Baseball--Economic aspects--United States.
Baseball--Law and legislation--United States.
Princeton subject headings:
Antitrust law--United States.
Baseball--Economic aspects--United States.
Baseball--Law and legislation--United States.