Columbia subject headings:
Competition.
Industrial organization.
Industrial policy--United States.
Monopolies--United States.
Prices--United States.
Trade associations--United States.
Trusts, Industrial--United States.
Harvard subject headings:
Competition.
Industrial organization.
Industrial policy--United States
Monopolies--United States.
Prices--United States
Professional associations--United States.
Trade associations--United States.
Trusts, Industrial--United States.
Princeton subject headings:
Competition.
Industrial organization.
Industrial policy--United States.
Monopolies--United States.
Prices--United States.
Trade and professional associations--United States.
Trusts, Industrial--United States.