Roman, Steven,  <br/><br/>
The umbral calculus 
by Steven Roman. 
 - Orlando, Fla.:  Academic Press,  1984. 
 - 193pages :   illustrations ;   24cm. 
 - Pure and applied mathematics .
<br/><br/>Bibliography: pages 183-187 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Calculus.