The world of learning . 

 - 43 ed. 
 - London :   Europa publications,   1993. : 
 - 2072 p. :  28 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Learning
<br/><br/><label>LC Class. No.: </label>HG3881.5.W57  / P63 no.4012 
<br/><br/><label>Dewey Class. No.: </label>001.2  / EUW 1993