Grolier encyclopedia of knowledge/ 

 - America:  Grolier Incorporated,  1991. 
 - 415 pages:  Color illustration, tables.  25 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><br/>English 
<br/><br/><label>ISBN: </label>0717253007 07172531104 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Encyclopedia.<br/>Knowledge.
<br/><br/><label>Dewey Class. No.: </label>030  / G89