@book{207083,
	author = {Patch, Edith M. and Maine. Agr. Exp. Sta. Bull.; 181},
	title = {Gall aphids of the olm  /},
	publisher = { University of Maine. Agricultural Experiment Station},
	address = {Orono, Me. :},
	note = {Encuadernado con otros impresos similares}
}