00567nam a2200181Ia 4500008004100000020001500041082001700056100002200073245003500095260003900130300000800169650001400177650002000191653002200211942001200233999001500245952012500260170901s1978    xx            000 0 und d  a0801652138  a371.92bV16D  aValett, Robert E. 0aDeveloping Cognitive Abilities  aSaint LouisbC. V. Mosby Co.c1978  a271  aEducation  aSocial sciences  aSpecial education  2ddccBK  c4262d4262  00102ddc4070aRAUbRAUd2017-10-18eC. T. L., CalcuttafUSDg10.95l0o371.92 V16Dp25010r2017-10-18w1981-04-10yBK