@book{44955,
	author = {Walker, Philip},
	title = {Electronic security systems :},
	publisher = {Newnes,},
	year = {2005},
	address = {Oxford ;},
	edition = {3rd ed.},
	note = {Includes index},
	url = {http://www.loc.gov/catdir/toc/els033/98217237.html}
}