Columbia subject headings:
Labor supply--United States.
Work ethic--United States.
Working class--United States.
Harvard subject headings:
Job satisfaction.
Labor supply--United States.
Labor--United States
Work ethic--United States
Work.
Working class--United States
Working class--United States--Attitudes
Princeton subject headings:
Labor supply--United States.
Work ethic--United States.
Working class--United States--Attitudes.