@book{110514,
	author = {Martínez Escobedo, Jesús Nerib},
	title = {Fertilizantes nitrogenados en la agricultura :},
	publisher = {El autor,},
	year = {2017.},
	address = {Chapingo, Méx. :},
	note = {Para ver el contenido del material haga clic en la liga},
	url = {http://10.13.5.2/tesis/sist114053.pdf}
}