@book{290,
	author = {Bernal Torres, César Augusto and Cruz Buelvas, Luis Eduardo,},
	title = {Metodología de la investigación :},
	publisher = {Pearson,},
	year = {2010.},
	address = {Colombia :},
	edition = {3a. ed.},
	url = {https://isae.metabiblioteca.org/cgi-bin/koha/opac-retrieve-file.pl?id=e1841a844fae0732a9a14d9e04ba6f09}
}