@book{3956,
	author = {Sharma, Sanjay},
	title = {Fundamentals of Data Communication Network},
	publisher = {S K KATARIA & SONS,},
	year = {2010.},
	address = {New Delhi},
	url = {http://www.amazon.com/exec/obidos/ASIN/9350140101/chopaconline-20}
}