Columbia subject headings:
Communication--Economic aspects--United States.
Communication--Political aspects--United States.
Corporations--United States.
Popular culture--United States--History--20th century.
Harvard subject headings:
Communication--Economic aspects--United States.
Communication--Political aspects--United States
Corporations--United States
Popular culture--United States--History--20th century
Princeton subject headings:
Communication--Economic aspects--United States.
Communication--Political aspects--United States.
Corporations--United States.
Popular culture--United States--History--20th century.