00531nam a2200193Ia 450000500170000000800410001704000190005804100120007708200160008910000170010524500520012226000330017430000260020750400350023363000270026865000170029565100140031285000110032620240423151521.0131103s9999    xx            000 0 und d  aLoreto College  aEnglish  a371.1 bHEL  aHelmore,G.A.  aPiaget - A Practical ConsiderationcG.A.Helmore  aOxfordbPergamon Pressc1969  avii,73 p.b ill.,fig.  aIncludes appendix & references  aEducational Psychology  aPiaget, Jean  aEducation  aLCBED