shepherd J,morton AH and Spence L F. <br/><br/>
Higher electrical engineering / 

 - Sir  isssc pitman and sons  ltd, london,  Sir  isssc pitman and sons  ltd, london,  c1964. 
 - 566p,;  NA  24cm. 
<br/><br/><label>ISBN: </label>NA 
<br/><br/><label>Dewey Class. No.: </label>621,3