Levy, H . <br/><br/>
Finite difference equations /  
H.Levy and F. Lessman. 
 - New York :   Dover publication ,   1992. 
 - vi,287p :   charts,diagram ;   21cm .  
<br/><br/>Includes index 
<br/><br/><label>ISBN: </label>0486672603  NULL 
<br/><br/><label>Subjects--Index Terms: </label>MATHEMATICS 
<br/><br/><label>Dewey Class. No.: </label>515.625  / LEV/F