Columbia subject headings:
Antitrust law--United States--History.
Big business--United States--History.
Consolidation and merger of corporations--United States--History.
Trade regulation--United States--History.
Harvard subject headings:
Antitrust law--United States--History
Big business--United States--History
Consolidation and merger of corporations--United States--History.
Trade regulation--United States--History.
Princeton subject headings:
Antitrust law--United States--History.
Big business--United States--History.
Consolidation and merger of corporations--United States--History.
Trade regulation--United States--History.