Richardson, C. H. <br/><br/>
An introduction to the calculus of finite differences / 
C. H. Richardson. 
 - New York :  D. Van Nostrand,  c 1954. 
 - vi, 142 p. :  ill. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/>327  327 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Calculus. <br/>Difference equations.
<br/><br/><label>Dewey Class. No.: </label>517.6 / R393i