@book{99503,
	author = {Ledezma Rivera, Jhonny Limbert and Kraemer Bayer, Gabriela},
	title = {Territorio y conflicto},
	publisher = {El autor,},
	year = {2010.},
	address = {Chapingo, Méx. :},
	url = {http://10.13.5.2/tesis/111161.PDF}
}