United States. Children's Bureau
, Burke, Dorothy May (Williams)
, Matthews, Ellen N., 1884-
and Skinner, Mary Elizabeth, 1886-1950.
Work of Children on Illinois Farms, Bureau Publication No. 168 ,
Washington, D.C:
Government Printing Office,
1926, https://fraser.stlouisfed.org/title/8448,
accessed on December 23, 2025.