Catherall, Ed,  <br/><br/>
Investigating numbers 

 - 32 pages :   colour illustrations ;   24 cm 
 - Investigations .
 - Investigations .
<br/><br/><label>ISBN: </label>0853409900 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Numbers, Theory of
<br/><br/><label>Dewey Class. No.: </label>510