Columbia subject headings:
Hours of labor--Law and legislation--United States--Cases.
Sex discrimination in employment--Law and legislation--United States--Cases.
Women--Employment--Law and legislation--United States--Cases.
Harvard subject headings:
Hours of labor--Law and legislation--United States--Cases.
Sex discrimination in employment--Law and legislation--United States--Cases.
Women--Employment--Law and legislation--United States--Cases.
Princeton subject headings: