United States. Children's Bureau.
The Promotion of the Welfare and Hygiene of Maternity and Infancy : The Administration of the Act of Congress of November 23, 1921, Fiscal Year Ended June 30, 1927, Bureau Publication No. 186 ,
Washington, D.C:
Government Printing Office,
1928, https://fraser.stlouisfed.org/title/8464,
accessed on December 25, 2025.