000 00397cam a2200157 i 4500
020 _a0416807208
050 1 0 _aMED RC570
_b.C5
100 1 _aClarke, Ann M.
245 1 0 _aMental deficiency, the changing outlook
250 _a3d ed.
260 _aNew York :
_bFree Press,
_c1974.
300 _axx, 886 p. :
_bgraphs ;
650 0 _aMental retardation.
700 1 _aClarke, A. D. B.
942 _cBK
999 _c9223
_d9223