@book{89330,
	author = {Guzmán Alcántara, Bernabé. and Osorio Sánchez, Edgar.},
	title = {Diseño de una máquina mezcladora de fertilizantes /},
	publisher = {El autor,},
	year = {2004.},
	address = {Chapingo, Méx. :},
	url = {http://10.13.5.2/tesis/100858.pdf}
}