Pugh, Emerson M <br/><br/>
Principles of Electricity and Magnetism/ 
Emerson M. Pugh 
 - \\  2nd ed. 
 - Massachusetts  Addison -Wesley publishing company  1970 
 - xiii,498p.:ill. 
<br/><br/> includes index 
<br/><br/><label>ISBN: </label>201060140 
<br/><br/><label>LC Class. No.: </label>QC 522