Columbia subject headings:
Associations, institutions, etc.--Law and legislation.
Cartels.
Marketing--Law and legislation.
Trusts, Industrial.
Harvard subject headings:
Associations, institutions, etc.--Law and legislation.
Marketing--Law and legislation
Trusts, Industrial.
Princeton subject headings:
Associations, institutions, etc.--Law and legislation.
Marketing--Law and legislation.
Trusts, Industrial.