Building mathematics skills :  level 8 ; Richard A. Denholm ...[et.al.]. 

 - Illinois:   The Riverside Publishing,   1980.  
 - 433 p. :  ill. ;  25 cm. 
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>0829200517 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>510