Geiger, Dana F. <br/><br/>
Phaselock loops for DC motor speed control   
by Dana F. Geiger 
 - New York  John Wiley  1981 
 - ix, 206p. 
<br/><br/><label>ISBN: </label>0471085480 
<br/><br/><label>Dewey Class. No.: </label>621.462  / N81