Reference data for engineers: radio, electronics, computer, & communications 
Edited by Mac E. Van Valkenburg. 
 - Eight edition. 
 -  SAMS, Prentice Hall Computer Publishing.  1993 
<br/><br/>
<br/><br/><label>ISBN: </label>9-71656018-4 
<br/><br/><label>Dewey Class. No.: </label>621.38 R25 1993