McHale, Thomas J. <br/><br/>
Calculation and calculators 
Thomas J. McHale, Paul T. Witzke 
 - Reading, Mass.  Addison-Wesley  c1977 
 - 419p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Study and teaching<br/>Arithmetic--Study and teaching<br/>Calculators