Stewart, Kathy,  <br/><br/>
Inventions & discoveries 

 - 48 pages :   colour illustrations ;   29 cm 
 - Whitman's new encyclopedia of knowledge .
 - Whitman's new encyclopedia of knowledge .
<br/><br/><label>ISBN: </label>8188385670 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Children's encyclopedia
<br/><br/><label>Dewey Class. No.: </label>032