01164cam a22002651 4500 hew66000178 DLC 20260227111515.0 801211s1966 dcua s000 0 eng c hew66000178 (OCoLC)7029140 U. S. Dept. of Health KWiU DNLM OCoLC DLC HV899.D45 A55 WM 30 M621v 1966 Michigan. Bureau of Maternal and Child Health. Vision Section. Vision and hearing screening in selected classes for the mentally retarded, city of Detroit, Michigan. [Washington] U.S. Dept. of Health, Education and Welfare, Welfare Administration, Children's Bureau, 1966. 10 p. illus. 26 cm. Conducted in cooperation with the bureau's Hearing Conservation Section, the Detroit Department of Health, and the Detroit Board of Education. Children with mental disabilities Michigan Detroit. Audiometry. Vision Testing. Michigan. Bureau of Maternal and Child Health. Hearing Conservation Section. United States. Children's Bureau. 34660 34660