00389cam a2200169   450000500170000024500320001702000150004910000350006404400130009925000090011204100080012130000230012950000050015283000050015726000390016208200180020120260711133909.0  aInternet a toda máquinab  a9586008207  aTiznado Santana, Marco Antonio  aColombia  a 1ª  aspa  a118 p. il.; 21 cm.  a  v  a Bogotá D.C.bMc Graw Hillc1998  a004.67bT625i