Dubisch, Roy,  1917 - <br/><br/>
Basic mathematics with hand-held calculator / 
Roy Dubisch and Ver non R. Hood 
 - Menlo Park, Calif :  Benjamin/Cummings,  1979. 
 - xii, 493 p. ;  28 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Arithmetic--1961 -
<br/><br/><label>Dewey Class. No.: </label>Q 513 DUB