Strauss, Walter A. <br/><br/>
Partial differential equations :  an introduction / 
Walter A. Strauss. 
 - 2nd ed. 
 - [S.l.] :  Wiley,  1992. 
 - 464 p. ;  24 cm. 
<br/><br/><label>ISBN: </label>0470054565 9780470054567 
<br/><br/><label>Dewey Class. No.: </label>515.353