00740cam a22002171  4500001001300000003000400013005001700017008004100034010001700075035001900092040007700111050001800188110003900206245008300245260002300328300002700351504005700378650005400435650001600489999001700505hew62000031 DLC20260227111511.0800312s1961    dcua          000 0 engxc  ahew62000031   a(OCoLC)6073424  aU. S. Dept. of Health, Education and Welfare.  LibrarycTxEUdOCoLCdDLC00aRJ501.A2bA531 aUnited States.bChildren's Bureau.10aHealth services for mentally retarded children,ba progress report, 1956-1960.  aWashington,c1961.  a34 p.btables.c26 cm.  aBibliography : p. 32-34.  Bibliographical footnotes. 0aChildren with mental disabilitieszUnited States. 0aChild care.  c34348d34348