Modern electrical engineering / 
Edited by W. J. John. 
 - London :  Odhams press,  c 1957. 
 - Vols. :  ill. ;  26 cm. 
<br/><br/> Includes index. 
<br/><br/>V. 4- Electrical data charts ; 
<br/><br/>87  87 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electrical engineering.
<br/><br/><label>Dewey Class. No.: </label>621.3 / J613m