00633nam a22002057a 4500003000400000005001700004008004100021020001500062040000800077082001800085100003700103245004500140250001000185260003800195300001100233650002500244942001200269999001300281952013300294OSt20220513105139.0030206s2002    ck            000 0 spa d  a9684229976  cOSt04221a170bE7361 aEscobar Valenzuela, Gustavo947300aÉtica  / cGustavo Escobar Valenzuela   a3 ed.  aMéxico : bMcGraw-Hill, c1992.  a245 p.042LEMBxÉTICA  9752  2ddccBK  c214d214  00102ddc3USAP4050708GRALauspsbuspscGENd2013-04-16l0o170 E736 3ed.p00741r2013-04-16 00:00:00tEj. 1w2013-04-16yBK