@book{90018,
	author = {Díaz Gutiérrez, Javier Bisael.},
	title = {Efecto del destete en la eficiencia reproductiva postparto de las ovejas pelibuey /},
	publisher = {El autor,},
	year = {2005.},
	address = {Chapingo, Méx. :},
	url = {http://10.13.5.2/tesis/101547.pdf}
}