00409nam a2200157 a 450000500170000000800410001703500190005810000290007722200110010624500540011730000080017136200270017990400150020690500130022199900170023420210219153225.0991125n                      000 0 spa u  aUPN01000084533  aArellano Carrillo, Cesar  aPLEXOS  aLa escuela tradicional y el dominio de la lectura  a2-4  a1993 No. 6, jul.-sept.  aACb022344  aArticulo  c71305d71305