@book{100292,
	author = {Pérez Rosales, Alejandro. and Pérez Nieto, Joel},
	title = {Propiedades del suelo bajo sistemas de labranza en cultivo en callejones},
	publisher = {El autor,},
	year = {2010.},
	address = {Chapingo, Méx. :},
	url = {http://10.13.5.2/tesis/111951.pdf}
}