@book{1228,
	author = {Roddy, Dennis, and Coolen, John.},
	title = {Electronic communications /},
	publisher = {Prentice Hall Career and Technology,},
	year = {c1995 [reprinted 2006, 2005, 2004, 2002, 1995].},
	address = {Englewood Cliffs, NJ ;},
	edition = {4th ed.},
	note = {Includes index.}
}