Zill,G Dennis <br/><br/>
Differential Equations With Boundary -Value Problems 

 - 3rd Edition 
 - Boston:  PWS Publishing Company,  1993. 
<br/><br/><label>ISBN: </label>0534931588 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential Equations With Boundary -Value Problems
<br/><br/><label>Dewey Class. No.: </label>515.35  / ZIL