Columbia subject headings:
Socialism--United States.
Technocracy.
Technology--Social aspects--United States.
Harvard subject headings:
Social classes--United States--History--20th century.
Socialism--United States--20th century.
Socialism--United States--History--20th century
United States--Social conditions.
Princeton subject headings:
Socialism--United States.
Technocracy.
Technology--Social aspects--United States.