Sticker, Henry. <br/><br/>
How to calculate quickly:    the art of calculating. 

 - London:    Constable ,    [1955] 
 - 256 p.  ;    20  cm. 
<br/><br/>  First published in 1945 under the title: The art of calculation. 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Arithmetic,  Mental.
<br/><br/><label>Dewey Class. No.: </label>511 STI