@book{2320,
	author = {Carr, Houston H. and Snyder, Charles A.},
	title = {Data communications and network security /},
	publisher = {McGraw-Hill Irwin,},
	year = {c2007.},
	address = {Boston :},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/enhancements/fy0632/2006043316-d.html}
}