Firth ,R <br/><br/>
Usborne first encyclopedia of science 

 - London;  Usborne Publishing Ltd;  2002 
 - 64 pages;  Illustrations;  29 x 22 cm 
<br/><br/><label>ISBN: </label>9780746078419 
<br/><br/><label>Dewey Class. No.: </label>J 503 FIRT