Levy,  Hermann  Lessman  ,F. <br/><br/>
finite  difference  equations  x 

 - x 
 - Lond.,  Isaac  pitman,  1959 
 - vii,278p 
<br/><br/>
<br/><br/><label>ISBN: </label>x     
<br/><br/><label>Subjects--Topical Terms: </label><br/>Calculus Calculus 
<br/><br/><label>Dewey Class. No.: </label>517.6/LEF