@book{1508,
	author = {O'Connor, Raymond J. and Shrubb, Michael.},
	title = {Farming & birds /},
	publisher = {Cambridge University Press,},
	year = {1986.},
	address = {Cambridge [Cambridgeshire] ;},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/description/cam032/86002279.html}
}