Blinko, Janine  <br/><br/>
Exploring numbers / 
Janine Blinko; illustrations by Alison Dexter; photographs by Zul Mukhida. 
 - London :  A & C Black,  c 2000. 
 - 64 p. :  ill. 
<br/><br/><label>ISBN: </label>0713649283 9780713649284 
<br/><br/><label>Dewey Class. No.: </label>513.2