@book{4921,
	author = {Zapata Altamirano, Ricardo José. and Luna Flores, Maximino.},
	title = {Investigación de maíz en el CIANOC},
	publisher = {INIFAP. Campo Experimental Zacatecas,},
	year = {1989},
	address = {Calera, Zac. :},
	note = {55-52}
}