00423nam a2200157Ia 450000500170000000800460001703700120006304000210007504100130009608400220010910000230013124500270015426000470018130000100022865000270023820250508153652.0008  250505s9999    xx            000 0 eng d  aTextual  aFEDL bengcFEDL  aeng2eng  a370.15, PETqFEDL  aPeterson Harvey A. 0aEdcuational psychology  aNew York, USAbThe Macmillan Companyc1948  a550p.  aEducation - Psychology