Joy of knowledge /  

 - London :   Mitchell Beazley Encyclopaedias,   1981 . 
 - Lib.has-pt.1,9,25,33. 32 41   cm. 
<br/><br/>Description: Lib.has-pt.1,9,25,33. 41. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Theory of Encyclopaedias 
<br/><br/><label>Dewey Class. No.: </label>503  / JOJ 1981