@book{1155,
	author = {Norton, Peter,},
	title = {Peter Norton's Introduction to Computers.},
	publisher = {McGraw-Hill,},
	year = {c2006.},
	address = {Boston :},
	edition = {6th ed.},
	url = {https://books.google.co.in/books?id=8c39NQzEgj4C&printsec=frontcover#v=onepage&q&f=false}
}