Columbia subject headings:
Big business--United States.
Oligopolies--United States.
United States--Economic conditions--1945-
Harvard subject headings:
Big business--United States
Oligopolies--United States.
United States--Economic conditions--1945-
Princeton subject headings:
Big business--United States.
Oligopolies--United States.
United States--Economic conditions--1945-
World War, 1939-1945--Influence.