Britannica book of the year 1971 

 - Chicago :  Encyclopaedia Britannica,  1971. 
 - 832 p. 
<br/><br/><label>ISBN: </label>0852291582 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Encyclopaedia
<br/><br/><label>Dewey Class. No.: </label>030  / BRI