@book{91438,
	author = {Barrientos Hernández, Ismael.},
	title = {Elementos para la planeación del desarrollo municipal de Tepetitlán, Hidalgo /},
	publisher = {El autor,},
	year = {2005.},
	address = {Chapingo, Méx. :},
	url = {http://10.13.5.2/tesis/102974.pdf}
}