Dennis G. Zill, Michael R. Cullen <br/><br/>
Differential Equations With Boundary-Value Problems / 
Dennis G. Zill, Michael R. Cullen. 
 - 3rd Edition 
 -  Brooks Cole,  1992. 
 - 772 p ;  30.00 cm  
<br/><br/> Hardcover 
<br/><br/><label>ISBN: </label>978-0534931582  
<br/><br/><label>Dewey Class. No.: </label>515.35  / DEN