Tocci, Ronald J. Digital systems : principles and applications / [by] Ronald J. Tocci [and] Neal S. Widmer. - 7th ed. - Upper Saddle River, New Jersey : Prentice-Hall International, c1998. - xiv, 898 p. : ill. ISBN: 0136494927 Subjects--Topical Terms: Digital electronics. Dewey Class. No.: 621.381 / T631