Gonis, Antonios, b.1945 <br/><br/>
Mastering mathematical skills 
Antonios Gonis, Wayne A. Strnad 
 - Reading, Mass.  Addison-Wesley  1980 
 - 418p. 27cm 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>0201030624  12.95 (est.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Arithmetic--1961