@book{89260,
	author = {Sánchez Vargas, Antonio.},
	title = {Alternativas de manejo de corderos en fase de lactancia /},
	publisher = {El autor,},
	year = {2004.},
	address = {Chapingo, Méx. :},
	url = {http://10.13.5.2/tesis/100788.pdf}
}