Kelley, Walter G  . <br/><br/>
Difference equations: an introduction with applications /  
by Walter G. Kelley and Allan C. Peterson. 
 - 2nd ed /  
 - New Delhi :   Elsevier ,   2001 
 - ix, 403p ;  
<br/><br/><label>ISBN: </label>0-12-403330-X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics- Equations
<br/><br/><label>Dewey Class. No.: </label>B33  / P1