00311cam a2200169   450000500170000024500310001702000050004810000390005304400050009225000050009704100080010230000050011050000050011583000050012026000090012508200070013420260711133824.0  aEcuaciones Diferencialesb  a  aReddick, Harry W.Kibbey, Donald E.  a  a  aspa  a  a  v  abc  ab