@book{16898,
	author = {Hume, W. G. and Kramp, K. V.},
	title = {Producción comercial de cebollas y guisantes.},
	publisher = {Acribia,},
	year = {1971.},
	series = {Manuales de técnica agropecuaria},
	address = {Zaragoza :},
	note = {En tapa: Hume y Secrett.}
}