Sommerfeld, Arnold <br/><br/>
Partial Differential Equations In Physics 
/ by Arnold Sommerfeld  
 - New York:  Academic Press,  1949. 
 - xi, 335p.; 
<br/><br/><label>ISBN: </label>000 
<br/><br/><label>Dewey Class. No.: </label>530.15  / SOM/P