Elaydi, Saber N. <br/><br/>
An introduction to difference equations  / 

 - Berlin:  Springer-Verlag,  1999 
 - ix, 427p. Index, Bibl. 
 - Undergraduate texts in Mathematics .
<br/><br/> "Purchased under NBHM grant for the year 1999-2000" 
<br/><br/><label>Dewey Class. No.: </label>515.35  / El37.ID