Grolier encyclopedia of knowledge/ 

 - United States of America:  Grolier Incorporated.,  1991. 
 - 415 pages:  Illustrations, tables.  25 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><br/>English 
<br/><br/><label>ISBN: </label>0717253007 0717253015 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Knowledge.
<br/><br/><label>Dewey Class. No.: </label>030  / G89