@book{203803,
	author = {Parrott, P. J. and Houser, J. S.},
	title = {Experiments with sulphur sprays for the fall treatment of the San Jose scale  /},
	publisher = { Agricultural Experiment Station},
	address = {Wooster, Ohio  :},
	note = {Encuadernado con: The hessian fly in Ohio/C. E. Thorne}
}