CHALLONER, Jack <br/><br/>
Rocks and minerals 
HURDMAN, Charlotte (ed.) 
 - 64p.  col. ill.  20cm. 
 - Learn About .
<br/><br/> Includes Index 
<br/><br/><label>ISBN: </label>184477113X  $17.70 
<br/><br/><label>Dewey Class. No.: </label>552