Boyce, William E <br/><br/>
Elementary differential equations 

 - Ed. 7 
 - New York  John Wiley  2001 
 - xvi, 745p 
<br/><br/><label>ISBN: </label>9-812-53006-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Boundary value problems<br/>Differential equations <br/>Mathematics