"Killingback, J. P." <br/><br/>
Creative use of calculators 

 - Middlesex  Penguin Books  1981 
 - 220 p. : ill 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Calculating machines
<br/><br/><label>Dewey Class. No.: </label>681.14 KIL