Columbia subject headings:
Industrial relations--United States.
Job satisfaction--United States.
Labor productivity--United States.
Personnel management--United States.
Working class--United States.
Harvard subject headings:
Industrial relations--United States
Job satisfaction--United States
Labor productivity--United States.
Personnel management--United States
Working class--United States
Princeton subject headings:
Industrial relations--United States.
Job satisfaction--United States.
Labor productivity--United States.
Labor--United States.
Personnel management--United States.