Encyclopedia of knowledge : 
Grolier. 
 - Danbury, Conn. :  Grolier,  c1991. 
 - [v-18], 415 p.:  ill. (some col.), col. maps   25 cm. 
<br/><br/><label>ISBN: </label>0717253260 (set) 
<br/><br/><label>LCCN: </label>92121098 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Knowledge-Encyclopedias and dictionaries.
<br/><br/><label>LC Class. No.: </label>AE5  / .E478 1991 
<br/><br/><label>Dewey Class. No.: </label>1.03  / GRK