00342nam a2200157Ia 4500001000700000003000400007008004500011010001100056041001400067245002700081260003100108300001000139650001400149650001300163082000800176003207LIB220712b1992        py ||||| |||| 00| 0 spa d  a003207  aEspañol  aEducación y Mercosur  bM.E.C,aMontevideo :c1992  a35 p.  aEDUCACION  aMERCOSUR  a370