The world book encyclopedia. 

 - Chicago :  World Book,  c 1998. 
 - Vols. :  ill. ;  25 cm. 
<br/><br/>V.16- (Q-R) ; 
<br/><br/>334  334 
<br/><br/><label>ISBN: </label>0-7166-0098-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Encyclopedia.
<br/><br/><label>Dewey Class. No.: </label>031 / W893