@book{994,
	author = {Comer, Douglas. and Narayanan, M.S. },
	title = {Computer networks and internets :},
	publisher = {Pearson/Prentice Hall ;},
	year = {c2008 [reprinted 2009].},
	address = {Upper Saddle River, N.J. :},
	edition = {4th ed.}
}