00740nam a22002057a 4500003000400000005001700004008004100021020001500062040000800077082002100085100004000106245011900146250001000265260003900275300000800314650005200322942001200374999001300386952013500399OSt20220429132257.0030206s2002    ck            000 0 spa d  a9701018990  cOSt04221a001.42bH4761 aHernández Sampieri, Roberto 961900aMetodología de la investigación  / cRoberto Hernandez Sampreri; Carlos Fernandez Collado; Pilar Baptita Lucio  a2 ed.  aMéxico : bMcGraw- Hill, c1998.  a501042LEMBxMETODOLOGÍA DE LA INVESTIGACIÓN 9620  2ddccBK  c533d533  00102ddc3USAP4050708GRALauspsbuspscGENd2013-04-19l0o001.42 H476 2edp00571r2013-04-19 00:00:00tEj. 1w2013-04-19yBK