000 00370nam a22001337a 4500
020 _a0407268502
041 _aeng
082 _a616.858 8 DOU H
245 1 0 _aMental retardation : prenatal diagnosis and infant assessment
260 _aLondon :
_bButterworths,
_c1972.
300 _a64 p. ;
_c23 cm.
650 _aMental retardation
700 _aHolt, K. S.
_eeditor
999 _c429830
_d429765