@book{168538,
	author = {Gallegos Ramírez, Raymundo},
	title = {Factores que afectan el grosor del cascarón en gallinas Leghorn blancas en Tepatitlán, Jalisco  /},
	publisher = {El autor,},
	year = {2006},
	address = {Chapingo, Méx.  :}
}