Columbia subject headings:
Hours of labor--Law and legislation--United States--History.
Hours of labor--Oregon.
Labor laws and legislation--Oregon.
Labor laws and legislation--United States--History.
Muller, Curt--Trials, litigation, etc.
Oregon--Trials, litigation, etc.
Women--Employment--Law and legislation--Oregon.
Women--Employment--Law and legislation--United States--History.
Harvard subject headings:
Hours of labor--Law and legislation--United States--History.
Labor laws and legislation--United States--History
Muller, Curt--Trials, litigation, etc.
Oregon--Trials, litigation, etc.
Women--Employment--Law and legislation--United States--History.
Princeton subject headings:
Hours of labor--Law and legislation--United States--History.
Labor laws and legislation--United States--History.
Muller, Curt--Trials, litigation, etc.
Oregon--Trials, litigation, etc.
Women--Employment--Law and legislation--United States--History.