@book{5055,
	author = {Tocci, Ronald J. and Widmer, Neal S.},
	title = {Sistemas digitales : },
	publisher = {Prentice-Hall Hispanoamericana,},
	year = {1996.},
	address = {México ; Santa Fe de Bogotá : },
	edition = {6a. ed.},
	note = {Incluye índice.}
}