@book{3797,
	author = {Forouzan , Behrrouz A and Fegan, Sophia Chung },
	title = {Data Communications and Networking},
	publisher = {McGraw -Hill},
	year = {2007},
	address = {New Delhi},
	edition = {4th ed.},
	note = {Includes acronyms, glossary, reference and index}
}