@book{8015,
	author = {Tocci, Ronald J. and Widmer, Neal S.},
	title = {Digital systems : principles and applications },
	publisher = {Prentice Hall,},
	year = {2001.},
	address = {Upper Saddle River, N.J. :},
	edition = {8th ed.},
	note = {Accompanying CD-ROM [1] under title: Texas instruments data sheets to accompany digital systems, CD-ROM [2] under title: Electronic workbench circuit files, CircuitMaker circuit files & student version software, demo version of CUPL to accompany digital systems, 8e.}
}