Scott, foresman mathematics 
L. Carey Bolster. 
 -  Scott, Foresman and Company.  1980 
 - 439 pages. 
<br/><br/>
<br/><br/><label>ISBN: </label>0-673-11817-7 
<br/><br/><label>Dewey Class. No.: </label>510 M42 1980