United States. Children's Bureau
and United States. Council of National Defense. Committee on Women's Defense Work. Department of Child Welfare.
Children's Year Working Program, Children's Year Leaflet No. 3, Bureau Publication No. 40 ,
Washington, D.C:
Government Printing Office,
1918, https://fraser.stlouisfed.org/title/8331,
accessed on November 25, 2025.