@book{45058,
	author = {Hernández Sampieri, Roberto and Fernández Collado, Carlos.},
	title = {Metodología de la Investigación.},
	publisher = {McGraw-Hill,},
	year = {2014.},
	address = {México D.F. :},
	edition = {6.},
	note = {Incluye Indice.}
}