@book{207064,
	author = {Symons, T.B. and Pears, L.M., Cory, E.N. and Maryland. Agr. Exp. Sta. Bulletin; 198},
	title = {Spraying fumigating and dipping for the control of San José Scale  /},
	publisher = { Agricultural Experiment Station},
	address = {Maryland :},
	note = {Encuadernado con otros impresos similares}
}