Lawson, Barbara Spilman. <br/><br/>
Rock Hounds / 
by Barbara Spilman Lawson. 
 - Florida :  Harcourt,  2005. 
 - 16 p. :  ill., col ;  20 cm. 
 - Science Leveled Library. .
 - Science Leveled Library. .
<br/><br/> Grade 3. 
<br/><br/><label>ISBN: </label>0153232188 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Easy Fiction.