World Book's young scientist / 
[illustrated by Hemesh Alles ... et al.]. 
 - Chicago :  World Book,  1991. 
 - 10 v. :  ill. 
<br/><br/><label>ISBN: </label>0716627914 
<br/><br/><label>LCCN: </label>91065812 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Dictionaries.<br/>Science--Experiments.<br/>Technology--Dictionaries.
<br/><br/><label>Dewey Class. No.: </label>503