O'Neil, Peter V. <br/><br/>
Beginning partial differential equations / 
Peter V. O'Neil 
 - 2nd ed 
 - Hoboken, N.J. :  Wiley-Interscience ,  2008 
 - ix, 477 p. :  ill. ;  25 cm 
 - Pure and applied mathematics .
 - Pure and applied mathematics .
<br/><br/> Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9780470133903 0470133902 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations