United States. Children's Bureau.
Mental Defectives in the District of Columbia : A Brief Description of Local Conditions and the Need for Custodial Care and Training, Dependent, Defective, and Delinquent Classes Series No. 2, Bureau Publication No. 13 ,
Washington, D.C:
Government Printing Office,
1915, https://fraser.stlouisfed.org/title/8307,
accessed on March 24, 2026.