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.) ; 23 cm. Includes index. ISBN: 0137005105 LCCN: 97015448 Subjects--Topical Terms: Digital electronics. LC Class. No.: TK7868.D5 / T62 1998 Dewey Class. No.: 621.39'5