Asmar, Nakhle H. <br/><br/>
Partial differential equations and boundary value problems / 
Nakhle H. Asmar. 
 - [S.l.] :  Prentice Hall,  1999. 
 - 598 p. ;  25 cm. 
<br/><br/><label>ISBN: </label>0139586202 9780139586200 
<br/><br/><label>Dewey Class. No.: </label>515.353