Tocci, Ronald J. Digital systems : principles and applications / Ronald J. Tocci, Neal S. Widmer. - 7th ed. - Upper Saddle River, N.J. : Prentice Hall, c1998. - xiv, 898 p. : ill. (some col.) ; 26 cm. Includes indexes. ISBN: 0137005105 (case) 0136494927 Subjects--Topical Terms: Digital electronics. Dewey Class. No.: 621.3916 / TOD