Epstein Bernard <br/><br/>
Partial differential equations: An introduction 

 -  1962 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>22663 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>B334, K2;1