@book{50248,
	author = {Saha, A. and Manna, N.},
	title = {Digital principles and logic design /},
	publisher = {Infinity Science Press ,},
	year = {2007},
	series = {Engineering series},
	address = {Hingham, Mass  :},
	url = {http://www.loc.gov/catdir/toc/ecip0714/2007013970.html}
}