Wilkinson, Barry. The essence of digital design / Barry Wilkinson. - London ; New York : Prentice Hall, 1997. - x, 227 p. : ill. ; 24 cm. - The Essence of Engineering Series . ISBN: 0135701104 (pbk.) Subjects--Index Terms: Logic Gates, Sequential Circuit Design, Flip-Flops and Counters Dewey Class. No.: 621.395