The encyclopedia americana/ 

 - U.S.A:  Encyclopedia America Corporation.  1978. 
 - 792 Pagess:   Color illustration, tables.  27 cm. 
 -  23 .
<br/><br/>Includes bibliographical references and index. 
<br/><br/><br/>English 
<br/><br/><label>ISBN: </label>0717201090 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Encyclopedia and dictionaries.
<br/><br/><label>Dewey Class. No.: </label>031  / A3