Grolier encyclopedia of knowledge. 

 -  Grolier Inc,  c2002. 
 - 20 v. :  ill. (col.) ;  23 cm. 
<br/><br/><label>ISBN: </label>0717253724 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Encyclopedias and dictionaries.
<br/><br/><label>Dewey Class. No.: </label>REF 030 G894