@book{31366,
	author = {Blake, Roy.},
	title = {Electronic communication systems /},
	publisher = {Delmar/Thomson Learning,},
	year = {c2002.},
	address = {Albany, N.Y. :},
	edition = {2nd ed.},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/enhancements/fy1401/2002728389-d.html}
}