@book{89662,
	author = {Munguía Navarrete, Marco Antonio.},
	title = {Diagnóstico de gestación en ovejas mediante ultrasonografía /},
	publisher = {El autor,},
	year = {2004.},
	address = {Chapingo, Méx. :},
	url = {http://10.13.5.2/tesis/101190.pdf}
}