Britannica book of the year 1981 events of 1980 

 - Chicago  Encyclopaedia Britannica         1981 
 - 766p.  cm. 
<br/><br/> Supplement to New Encyclopaedia Britannica. Ed. 15. 
<br/><br/><label>Standard No.: </label>15307 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>GENERALIA
<br/><br/><label>Dewey Class. No.: </label>k1,N32, G2;L4,1 G2; L4,2.1-.10 G2;L4,3.1-.19 (RR)