00394nam a2200133Ia 450000500170000008000180001724500950003526000320013030000100016250000400017258300190021294200120023199900170024320260716043118.0  a06.02.01 U58e  aEducation and knowledge : basic pillars of changing production patterns with social equity  bUN. ECLACaSantiagoCLc1992  a12 p.  aIncludes bibliographical references  c3/7/00kM2LMGR  cMmU58e  c40548d40548