Gold, Bernard.  <br/><br/>
Digital processing of signals 

 - New York :   McGraw-Hill,   1969. 
<br/><br/><label>ISBN: </label>070236429 
<br/><br/><label>Subjects--Topical Terms: </label><br/>CONTROL AUTOMATICO. INGENIERIA
<br/><br/><label>Universal Decimal Class. No.: </label>681.5