000 00292nas a22001097a 4500
008 180116s1940 xxu||||| |||| 00| 0 eng d
245 _aAmerican journal of mental deficiency
_b
260 _aWashington Dc
_b
_c1940
440 _vv. 45- July 1940 -
650 _aMental Retardation
906 _a19
999 _c57306
_d57306