Cockrell, W. D.  <br/><br/>
Industrial electronic control :   A guide to the understanding of electronic control circuits for industrial uses 

 - 2a ed 
 - New York :   McGraw-Hill,   1950. 
 - xiii, 385 p. : il. ; 21 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>CONTROL DE POTENCIA<br/>ELECTRONICA DE POTENCIA
<br/><br/><label>Universal Decimal Class. No.: </label>621.38