Gray, Alexander.  <br/><br/>
Principles and practice of electrical engineering / 
Alexander Gray ;  revised by G. A. Wallace. 
 - 7th ed. 
 - New York :  McGraw-Hill Book Company,  c 1955. 
 - xii, 598 p. :  ill. ;  23 cm. 
<br/><br/> Includes index. 
<br/><br/>340  340 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Applied physics.<br/>Electrical engineering.
<br/><br/><label>Dewey Class. No.: </label>621.3 / G79p