John, Fritz <br/><br/>
Partial Differential Equations:  Applied Mathematical Sciences 1 
/ by Fritz John 
 - 3rd ed. 
 - New York;  Springer-Verlag:  1978. 
 - ix, 198p. 
<br/><br/><label>ISBN: </label>0387903275 
<br/><br/><label>Dewey Class. No.: </label>515.353  / JOH/P