00313cam a2200169 450000500170000024500380001702000050005510000340006004400050009425000050009904100080010430000050011250000050011783000050012226000090012708200070013620260711133851.0 aCálculo 2 de varias variablesb a aLarson, Ron Edwards, Bruce H. a a aspa a a v abc ab