01135cam a22002531  4500001001300000003000400013005001700017008004100034010001700075035001900092040005000111050001900161060002200180110006900202245010700271260011300378300002600491500014700517650005800664650001600722650002100738710008300759710003900842hew66000178 DLC20260227111515.0801211s1966    dcua         s000 0 eng c  ahew66000178   a(OCoLC)7029140  aU. S. Dept. of HealthcKWiUdDNLMdOCoLCdDLC00aHV899.D45bA550 aWM 30bM621v 19661 aMichigan.bBureau of Maternal and Child Health.bVision Section.10aVision and hearing screening in selected classes for the mentally retarded, city of Detroit, Michigan.  a[Washington]bU.S. Dept. of Health, Education and Welfare, Welfare Administration, Children's Bureau,c1966.  a10 p.billus.c26 cm.  aConducted in cooperation with the bureau's Hearing Conservation Section, the Detroit Department of Health, and the Detroit Board of Education. 0aChildren with mental disabilitieszMichiganzDetroit. 0aAudiometry. 0aVisionxTesting.1 aMichigan.bBureau of Maternal and Child Health.bHearing Conservation Section.1 aUnited States.bChildren's Bureau.