@book{3697,
	author = {Roberts, T. J. and Roberts, T. J.},
	title = {The birds of Pakistan /},
	publisher = {Oxford University Press,},
	year = {1991-1992.},
	address = {Karachi ;},
	edition = {1st ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy0606/91930173-d.html}
}