Book B1 : SMP 11-16 

 - London :  Cambridge university press,  1985. 
 - 124p.;  ill.;  25cm 
<br/><br/><label>ISBN: </label>0-521-31753-3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>510  / BOO