@book{6616,
	author = {Forouzan, Behrouz A. and Fegan, Sophia Chung.},
	title = {Data communications and networking /},
	publisher = {McGraw-Hill Higher Education ;},
	year = {c2007 [reprinted 2009].},
	series = {McGraw-Hill Forouzan networking series},
	address = {New York :},
	edition = {Fourth edition.}
}