@book{603,
	author = {Borradaile, L. A.  and Potts, F.A. },
	title = { The invertebrata, a manual for the use of students /},
	publisher = {University Press, Cambridge,},
	year = {1951.},
	address = {New york :},
	edition = {Second adition.},
	note = { includes index. }
}