@book{170088,
	author = {Martinez Valdez, Germain and  Burgueño Ferreira, Juan Andrés, asesor },
	title = {Sombra artificial, tiempo de pastoreo y consumo de vacas lecheras en praderas templadas  /},
	publisher = {El autor,},
	year = {2015},
	address = {México  :},
	url = {http://10.13.5.2/tesis/sist112017.pdf}
}