00538nam a2200181Ia 450000500170000000800460001703700120006304000200007504100130009508400230010810000190013124500420015026000510019230000140024349000360025754600340029365000290032720250508165030.0008  250505s9999    xx            000 0 eng d  aTextual  aFEDLbengcFEDL  aeng2eng  a155.413, PIAqFEDL  aFlavell John H 0aDevelopment psychology of Jean Piaget  aNew Jersey, USAbD. Van Nostrand Companyc1963  axvi,472p.  aUniversity series in psychology  aAcc No. 086384 is MACESE book  aDevelopmental psychology