00424nam a2200169Ia 450000500170000000800410001704100140005808200230007210000170009524500310011225000110014326000350015430000120018949000240020165000140022565000150023920260814103315.0260803t1981    xx            000 0 und d  afotocopia  aBIB/05.01.01/03203  aPiaget, Jean 0aPsicología y pedagogía  a8a. ed  aBarcelona : bEd. Ariel,c1981  a208 pb  aAriel quincenal, 26  aPEDAGOGIA  aPSICOLOGIA