The 1991 World Book year book :  the annual supplement to the World Book encyclopedia. 

 - Chicago :  World Book,  c 1991. 
 - 576 p. :  ill. ;  26 cm. 
 - A review of the Events of 1990. .
<br/><br/>344  344 
<br/><br/><label>ISBN: </label>0-7166-0491-4 
<br/><br/><label>ISSN: </label>0084-1439 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Encyclopedias and dictionaries.<br/>Yearbooks.
<br/><br/><label>Dewey Class. No.: </label>031 / W893