Boyce, William E. and Diprima, Richard C. <br/><br/>
Elementary differential equations and boundary value problems 

 - 9th ed.. 
 -  Wiley  2009 
<br/><br/><label>ISBN: </label>9788126521555 
<br/><br/><label>Dewey Class. No.: </label>515.35  / T09 BOY.D