Bellman, Richard Ernest, 1920- <br/><br/>
Differential-difference equations / 
by Richard Bellman and Kenneth L. Cooke 
 - New York :  Academic Press,  1963 
 - xvi, 462 p.:  ill.;  24 cm. 
 - Mathematics in science and engineering, v.6. .
<br/><br/>Includes bibliography 
<br/><br/><label>LCCN: </label>61-018904 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential--difference equations