@book{1754,
	author = {Forouzan, Behrouz A},
	title = { Data Communications and Networking.},
	publisher = {Mc Graw Hill,},
	year = {2017.},
	address = {Chennai :},
	edition = {5th ed.},
	url = {https://books.google.com.pk/books?id=bwUNZvJbEeQC&printsec=frontcover#v=onepage&q&f=false}
}