HERNANDEZ SAMPIERI, ROBERTO;FERNANDEZ COLLADO, CARLOS;BAPTISTA LUCIO, PILAR METODOLOGIA DE LA INVESTIGACION LIBRO - 4 4 - MEXICO MCGRAWHILL 2008 - 850p NEGRO TAPA BLANDA 24X19X6CM - 4 4 . ISBN: 978-970-10-5753-7 Standard Tech. Report. No.: LC Class. No.: HER 142 / 144 Dewey Class. No.: 001.42 / 144 GPO Item No.: 144