@book{94027,
	author = {González Méndez, Jorge Arturo.},
	title = {Competencia laboral y manejo de los recursos naturales en la montaña de Guerrero},
	publisher = {El autor,},
	year = {2007.},
	address = {Chapingo, Méx. :},
	url = {http://10.13.5.2/tesis/105602.pdf}
}