@book{77147,
	author = {Méndez Díaz, Margarito.},
	title = {Control químico de la roya del frijol (Uromyces phaseoli-typica Arth.) con fungicidas triazoles en Chapingo, México},
	publisher = {El autor,},
	year = {1999.},
	address = {Chapingo, Méx. :}
}