@book{81009,
	author = {Díaz Barrios, José Darinel. and Zavala Martínez, María Elena.},
	title = {Calidad forrajera de plantas en un agostadero en Concordia, Sinaloa},
	publisher = {El autor,},
	year = {2000.},
	address = {Chapingo, Méx. :}
}