Chinn, William G <br/><br/>
Arithmetic and calculators :  how to deal with arithmetic in the calculator age / 
William G. Chinn, Richard A. Dean, Theodore N. Tracewell 
 - San Francisco,  W. H. Freeman,  1978 
 - vii, 488 p. :  ill. ;  25 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>0716700166 0716700158pbk 
<br/><br/><label>LCCN: </label>77-11111 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Arithmetic--1961<br/>Calculating--machines