000 00428nam a22000977a 4500
999 _c18987
_d18987
245 _aExtending clinical services for mentally retarded children at the community level /
_cThe Child Development Clinic of Childrens Hospital and The California Bureau of Maternal and Child Health
260 _aCalifornia :
_bUS Dept. of Health, Education and Welfare,
_c1965.
300 _a19 p.
650 _aMental retardation
_vChildren
942 _cRB