Hellwig, Gunter <br/><br/>
Partial differential equations :  an introduction / 
Gunter Hellwig 
 - New York :  London :  McGraw-Hill,  1964  
 - x, 263 p. :  ill. ;  24 cm. 
 - International series in pure and applied mathematics. .
<br/><br/>Includes bibliography and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations, Partial.
<br/><br/><label>Dewey Class. No.: </label>517.383  / HEP 1964