Heylings , M.R  <br/><br/>
Practical activites in mathematics :  

 - Schofield :  London ;  1984. 
 - 80 p ;24 cm .  01 
 - 2024-09-18 
<br/><br/><label>ISBN: </label>0721724329 
<br/><br/><label>Nat. Bib. No.: </label>0010600 
<br/><br/><label>Nat. Bib. Agency Control No.: </label>HEY 
<br/><br/><label>Universal Decimal Class. No.: </label>784