Columbia subject headings:
Capitalism--Latin America--History.
Capitalism--United States--History.
Radio broadcasting--Economic aspects--Latin America--History.
Radio broadcasting--Economic aspects--United States--History.
Harvard subject headings:
Capitalism--Latin America--History.
Capitalism--United States--History
Radio broadcasting--Economic aspects--Latin America--History.
Radio broadcasting--Economic aspects--United States--History.
Princeton subject headings:
Capitalism--Latin America--History.
Capitalism--United States--History.
Radio broadcasting--Economic aspects--Latin America--History.
Radio broadcasting--Economic aspects--United States--History.