@book{207021,
	author = {Fernald, H.T. and Massachusetts. Agr. Exp. Sta. Bulletin; 116},
	title = {The San Jose Scale and experiments for its control  /},
	publisher = { Agricultural Experiment Station},
	address = {Amherst, Mass :},
	note = {Encuadernado con otros impresos similares}
}