@book{200798,
	author = {Southwick, Lawrence and Shaw, J.K.},
	title = {Spraying to control preharvest drop of apples  /},
	publisher = { Massachusetts Agricultural Experiment Station},
	address = {Amherst, Mass.  :},
	note = {Encuadernado con: Orchard insects of the pacific northwest and their control / by E.J. Newcomer}
}