@book{91780,
	author = {Muñoz Marchena, Virginia. and González Cortinez, J. Carlos.},
	title = {Optimización de los niveles de proteina en dietas para pollo de engorda /},
	publisher = {El autor,},
	year = {2006.},
	address = {Chapingo, Méx. :},
	url = {http://10.13.5.2/tesis/103318.pdf}
}