000 00422cam a2200157 4500
020 _a0272760331
050 1 0 _aMED RC570
_b.M43
100 _aMental Subnormality:
245 0 0 _aMental subnormality: Modern Trends in Research
260 _aLondon,
_bPitman Medical,
_c1970.
300 _ax, 260 p., plate.
_bill.
650 0 _aMental retardation
650 2 _aMental retardation.
700 1 _aRichards, B. W.
942 _cBK
999 _c9200
_d9200