@book{6617,
	author = { Stallings, William},
	title = {Data and Computer Communications.},
	publisher = {Pearson,},
	year = {2018.},
	address = {Boston :},
	edition = {10th ed.},
	url = {https://books.google.com.pk/books/about/Data_and_Computer_Communications.html?id=q_JSAAAAMAAJ&source=kp_book_description&redir_esc=y}
}