Llewellyn, Claire,  <br/><br/>
How things work 

 - 93 pages :   colour illustrations ;   27 cm 
 - First encyclopedia .
 - First encyclopedia .
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>1843010283 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Technology - Miscellanea
<br/><br/><label>Dewey Class. No.: </label>600