Frohr, Friedrich & Orttenburger, Fritz <br/><br/>
Introduction to electronic control engineering .-978-81-224-2595-6 

 - New age, New Delhi  1982 
 - 338 
<br/><br/><label>ISBN: </label>978-81-224-2595-6 
<br/><br/><label>Dewey Class. No.: </label>621.381 Fro/Ort