@book{9236,
	author = {DeBach, Paul. and Rosen, David,},
	title = {Biological control by natural enemies /},
	publisher = {Cambridge University Press,},
	year = {1991.},
	address = {Cambridge, [England] ;},
	edition = {2nd ed.},
	url = {http://www.loc.gov/catdir/description/cam024/90002388.html}
}