00352cam a2200169   450000500170000024500210001702000140003810000170005204400190006925000090008804100080009730000180010550000050012383000050012826000340013308200150016720260711133900.0  aStructuralism.b  a061316105  aPiaget, Jean  aEstados Unidos  a1ª   aeng  a153 p. 20 cm.  a  v  aNew YorkbHarper Ty Rowc1971  a140bP579s