TY - BOOK ED - Michigan. ED - Michigan. ED - United States. TI - Vision and hearing screening in selected classes for the mentally retarded, city of Detroit, Michigan AV - HV899.D45 A55 PY - 1966/// CY - [Washington] PB - U.S. Dept. of Health, Education and Welfare, Welfare Administration, Children's Bureau KW - Children with mental disabilities KW - Michigan KW - Detroit KW - Audiometry KW - Vision KW - Testing N1 - Conducted in cooperation with the bureau's Hearing Conservation Section, the Detroit Department of Health, and the Detroit Board of Education ER -