@book{231222,
	author = {Behrens, Thorsten. and ProQuest (Firm)},
	title = {Cisco Pix firewalls},
	publisher = {Syngress Publishing,},
	year = {2005.},
	address = {Rockland, MA :},
	note = {Includes index.},
	url = {https://ebookcentral.proquest.com/lib/kuct-ebooks/detail.action?docID=254835}
}