@book{11667,
	author = {Tibbs, Richard W. and Oakes, Edward B.},
	title = {Firewalls and VPNs :},
	publisher = {Pearson/Prentice Hall,},
	year = {c2006.},
	series = {Security series},
	address = {Upper Saddle River, N.J :},
	url = {http://www.loc.gov/catdir/toc/ecip0512/2005012530.html}
}