S.L. Sobolev  <br/><br/>
Partial Differential Equations of Mathematical Physics  

 - USA  Dover Publications INC.  1964 
 - X,427 
<br/><br/><label>ISBN: </label>0-486-65964-X 
<br/><br/><label>Dewey Class. No.: </label>530.155353  / SOB