00395nam a2200157Ia 4500003000400000008004100004040001300045041000800058050001400066100001700080245005700097250000700154260004200161300001800203650001600221688200124s9999||||xx |||||||||||||| ||und|| cCIC-UMAD aeng aLB775bP5 aPiaget, Jean 0aScience of education and the psychology of the child a1a aEstados UnidosbDenoel Editionsc1970 a186 p.b22 cm aEducacioĢn