Columbia subject headings:
Antitrust law--United States.
Trade associations--United States.
Harvard subject headings:
Antitrust law--United States
Corporation law--United States.
Law reports, digests, etc.--United States.
Professional associations--Law and legislation--United States.
Professional associations--United States.
Trade associations--Law and legislation--United States.
Trade associations--United States.
Princeton subject headings:
Antitrust law--United States.
Competition, Unfair--United States.
Restraint of trade--United States.
Trade associations--Law and legislation--United States.
Trade associations--United States.