@book{31643,
	author = {Crispín Medina, Alfonso. and Barriga S., Celio.},
	title = {El cultivo de la soya en México},
	publisher = {Instituto Nacional de Investigaciones Agrícolas,},
	year = {1975},
	series = {Divulgación},
	address = {México :},
	edition = {ed. rev. act.}
}