@book{61307,
	author = {Cruz Gómez, Marcelino. and Zamudio Sánchez, Antonio.},
	title = {Suplementación mineral de ovinos en pastoreo en San Isidro Chipila, Tlaxcala},
	publisher = {El autor,},
	year = {1996},
	address = {Chapingo, Méx. :}
}