Columbia subject headings:
Hours of labor--Law and legislation--United States--States.
Minimum wage--Law and legislation--United States--States.
Overtime--Law and legislation--United States--States.
Wages--Law and legislation--United States--States.
Harvard subject headings:
Hours of labor--Law and legislation--United States--States.
Labor laws and legislation--United States--States
Minimum wage--Law and legislation--United States--States.
Overtime--Law and legislation--United States--States.
Wages--Law and legislation--United States--States.
Princeton subject headings: