Elaydi, Saber N. <br/><br/>
An Introduction to Difference Equations 
/ by Sabar N. Elaydi 
 - 2nd ed. 
 - New York  Springer  1999 
 - xvii,427p. 
<br/><br/><label>ISBN: </label>9780387988306 
<br/><br/><label>Dewey Class. No.: </label>515.625  / ELA/A