Evans, Lawrence C., <br/><br/>
Partial Differential Equations / 
Evans, Lawrence C., 
 - Providence, R.I. :  American Mathematical Society,  1998 
 - xvii, 662 p. :  ill. ;  26 cm. 
 - Graduate studies in mathematics,  v. 19 .
<br/><br/><label>ISBN: </label>0821807722 (acid-free paper)