O'Daffer, Phares G. <br/><br/>
Pre-Algebra  a transition to algebra 
Phares G. O'Daffe, Stanley R. Clemens, Randall I. Charles. 
 - Menlo Park, CA  Addison-Wesley Publishing Co.  c1992. 
 - 614 p.  ill.  26 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0201285207 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Study and teaching (Elementary)<br/>Mathematics--Study and teaching (Secondary)