BANGAY, R. D. <br/><br/>
THE ELEMENTARY PRINCIPLES OF WIRELESS TELEGRAPHY 
R. D. BANGAY 
 - LONDON  
 - 241 
<br/><br/> PE mean Physics, Electricity and Magnetism Page 450-456 in A to Z Register (Acc. No. Pe1-Pe205) 
<br/><br/><label>Dewey Class. No.: </label>Pe47