@book{200615,
	author = {Graham, S.A. and Orr, L.W.},
	title = {The spruce budworm in Minnesota  /},
	publisher = { University of Minnesota},
	address = {Minnesota, USA  :},
	note = {Encuadernado con: Orchard insects of the pacific northwest and their control / by E.J. Newcomer}
}