Widmer, Neal S. <br/><br/>
Digital systems :  principles and applications / 
Neal S. Widmer, Gregory L. Moss and Ronald J. Tocci. 
 - 12th ed. - 
 - Harlow, England:  Pearson,   c2018. 
 - 1024 p. :   col. ill. ;  28 cm. 
<br/><br/>Includes glossary and index. 
<br/><br/><label>ISBN: </label>978-1-292-16200-3 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Digital Electronics.