Folland, G.B <br/><br/>
Introduction to partial differential equations 
G.B. Folland 
 - 2 
 - New Jersey  Princeton University Press  1995 
 - xi  324 
 - Princeton university mathematical notes 17 .
<br/><br/><label>ISBN: </label>9780691043616 
<br/><br/><label>Dewey Class. No.: </label>10.02  / FOLL