Roger L. Tokheim <br/><br/>
Schaum's Outline Of Theory And Problems Of Digital Principles 

 - 3rd ed 
 -   Mcgraw Hill  ©1994 
<br/><br/><label>ISBN: </label>9780070650503  42 
<br/><br/><label>Dewey Class. No.: </label>621.3815/TOK