Pearl Richard M <br/><br/>
Popular geomology 

 -  1948 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>47211 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Gem stone<br/>Geology
<br/><br/><label>Dewey Class. No.: </label>H19, H8