00888nam a2200241 a 4500001000800000005001700008008004100025015001900066019001100085035001700096035001100113040001600124050001500140082001700155100002700172245021100199260003400410300003400444500001700478500005400495610004800549984004900597175007519711231000000.0710830s1968 at ac 000 0 eng  aAus68-642 rev.1 a359092 9000000359092 9121572 aLCbengcLC00aHV894b.V304a362.3/062/731 aVan Pelt, John Daniel.10aParent groups for the mentally retarded in America;ba report on the organization and functioning of the National Association for Retarded Children at national, state and local levels,cby John D. van Pelt. aCanberrab[The Author]c1968. a26 l.billus., ports.c30 cm. aCover title. a"Prepared under a 1967 Rosemary F. Dybwad grant."20aNational Association for Retarded Children. aANLcNpf 362.306273 V273cNp 362.306273 V223