Britannica book of the year :  1990. 

 - Chicago :  Encyclopedia Britannica,  c 1990. 
 - 926 p. :  ill. ;  29 cm. 
<br/><br/> Includes index. 
<br/><br/>Bibliography : P. 894-896. 
<br/><br/>333  333 
<br/><br/><label>ISBN: </label>0-85229-522-7 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Encyclopedia.
<br/><br/><label>Dewey Class. No.: </label>032.05 / B777