Spiegel, Murray R. <br/><br/>
Calculus of finite differences and difference equations 

 - New Delhi  Tata McGraw - Hill Publishing Company Ltd.   2005 
 - 259p. 
<br/><br/><label>ISBN: </label> RS 210.00 
<br/><br/><label>Source: </label> RS 210.00 
<br/><br/><label>Dewey Class. No.: </label>515.3 SPI