@book{73744,
	author = {Cárdenas Chávez, Ignacio Eugenio.},
	title = {El trigo en el Altiplano Potosino},
	publisher = {INIA. Campo Agrícola Experimental San Luis Potosí,},
	year = {(s.a.)},
	address = {San Luis Potosí , S.L.P. :}
}