@book{8688,
	author = {Gupta, Prakash C.},
	title = {Data communications and computer networks /},
	publisher = {Prentice-Hall of India Pvt.Ltd,},
	year = {1998.},
	address = {[S.l.] :},
	edition = {2nd edition.},
	url = {http://www.amazon.com/exec/obidos/ASIN/8120348648/chopaconline-20}
}