@book{118169,
	author = {Ifrah, Georges, and Harding, E. F. },
	title = {The universal history of computing :},
	publisher = {John Wiley,},
	year = {c2001.},
	address = {New York :},
	url = {http://www.loc.gov/catdir/bios/wiley043/00047771.html}
}