Sneddon, Ian N <br/><br/>
Elements of partial differential equations 

 - New York  McGraw-Hill  1957 
 - ix, 327p.  
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>70857407 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations<br/>Mathematics<br/>Partial differential equations