@book{19705,
	author = {Parson, David B},
	title = {Frijol y Chicharo /},
	publisher = {Trillas,},
	year = {1990.},
	series = {Manuales para  Educación Agropecuaria.Producción Vegetal No.12},
	address = {México :},
	edition = {2.}
}