Sticker, Henry <br/><br/>
How to calculate quickly: The art of calculation 

 -  Dover Publcations Inc., New York  1955 
 - 254 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics - Generalities
<br/><br/><label>Dewey Class. No.: </label>511  STI-H