@book{193072,
	author = {Boyles, Tim. and ebrary, Inc.},
	title = {CCNA Security study guide},
	publisher = {Wiley,},
	year = {2010.},
	address = {Indianapolis :},
	note = {Includes index.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10375612}
}