De Barr, A    E <br/><br/>
Automatic control;  an introduction to the theory of feedback and feedback control systems. 

 - London,  New York,  Published on behalf of the Institute of Physics and the Physical Society by Chapman and Hall;  Reinhold Pub. Corp.  [1962] 
 - 118 p.  il. 
<br/><br/>Includes bibliography. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Feedback (Electronics).<br/>Comentario (Electrónica)<br/>Feedback control systems.<br/>Sistemas de control de retroalimentación