@book{97230,
	author = {Rodríguez Ortega, Leodan Tadeo.},
	title = {Uso de ractopamina en Alimentación de cerdos en finalización},
	publisher = {El autor,},
	year = {2009},
	address = {Chapingo, Méx. :},
	url = {http://10.13.5.2/tesis/108886.pdf}
}