Columbia subject headings:
Antitrust law--Economic aspects--United States--Case studies.
Trusts, Industrial--Government policy--United States--Case studies.
Harvard subject headings:
Antitrust law--Economic aspects--United States--Case studies.
Trusts, Industrial--Government policy--United States--Case studies.
Princeton subject headings:
Antitrust law--Economic aspects--United States--Case studies.
Case studies.
Trusts, Industrial--Government policy--United States--Case studies.