Rules and Regulations Made by the Board Consisting of the Attorney General, the Secretary of Commerce, and the Secretary of Labor for Carrying Out the Provisions of an Act to Prevent Interstate Commerce in the Products of Child Labor, and for Other Purposes, Approved September 1, 1916 Issued August 14, 1917
United States. Children's Bureau
1917 оны 1-р сар · U.S. Government Printing Office