@book{3955,
	author = {SHARMA, SANJAY.},
	title = {Data Communication},
	publisher = {S K KATARIA & SONS,},
	year = {2011.},
	series = {Ptu.},
	address = {New Delhi},
	url = {http://www.amazon.com/exec/obidos/ASIN/9380027133/chopaconline-20}
}