@book{7750,
	author = {Hsu, Hwei P.},
	title = {Schaum's outline of theory and problems of analog and digital communications },
	publisher = {McGraw-Hill,},
	year = {2003.},
	address = {New York :},
	edition = {2nd ed.},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/description/mh031/2002153194.html}
}