Childcraft.  

 - Chicago :  World Book International,  © 1996. 
 - Vols. :  ill. ;  26 cm. 
<br/><br/> Includes index 
<br/><br/>V. 10- Mathemagic ;  
<br/><br/>300  300 
<br/><br/> Illustrated articles, stories, and poems, grouped thematically in fifteen volumes under titles including "World and space,""About animals,""How things work," and "Make and do." 
<br/><br/><label>ISBN: </label>0-7166-6007-5  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Children's encyclopedias and dictionaries.<br/>Collections of literary texts from more than one literature.
<br/><br/><label>Dewey Class. No.: </label>808.8 / C436