1980 Britannica Book of the Year 
Encyclopedia Britannica 
 - Chicago  Encyclopaedia Britannica  1980 
 - 766p. 
<br/><br/><label>ISBN: </label>0-85229-372-0 
<br/><br/><label>Subjects--Topical Terms: </label><br/>NASA Thesaurus<br/>Year Books
<br/><br/><label>Universal Decimal Class. No.: </label>58  / ENB-80