00357nam a2200157 a 450000500170000000800410001703500190005810000220007722200100009924500210010930000080013036200160013890400150015490500130016999900170018220210219153538.0991125n                      000 0 spa u  aUPN01000105715  aPiastro, Estrella  aDIDAC  aPara que educar?  a2-5  a1999 No. 33  aACb043526  aArticulo  c79629d79629