"Hiraku Toyama" <br/><br/>
A Child's First Mathematics Program What Are Numbers?? (6 to 99) 

 - Hong Kong  Time - Life Books  2004 
 - 55 
<br/><br/><label>ISBN: </label>0-8094-8770-5 
<br/><br/><label>Dewey Class. No.: </label>510  / 4068