The New book of knowledge. 

 -  Grolier Inc.,  1992 
 - 21 v. 537 p. 
<br/><br/>
<br/><br/><label>ISBN: </label>0-7172-0523-1 (set) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Children's encyclopedias and dictionaries.
<br/><br/><label>Dewey Class. No.: </label>R 031 N42 1992