@book{51701,
	author = {Gralla, Preston.},
	title = {How personal & Internet security works /},
	publisher = {Que/Sams ;},
	year = {2006.},
	address = {Indianapolis, Ind. :},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/toc/fy0706/2006922248.html}
}