Sommerfeld, Arnold. <br/><br/>
Optcis  Lectures on theoretical physics ,Vol-IV 
by Arnold Sommerfeld and tr. by Otto Laporte and Peter A Mol 
 - New York  Academic Press  1964 
 - xii,383p. 
<br/><br/> Donated by S K Chatterjee 
<br/><br/><label>Dewey Class. No.: </label>535  / N64 (ECE)