Hurlbut Cornelius S <br/><br/>
Gemology 

 - New York       John Wiley and Sons       1979 
 - 243p.  cm. 
<br/><br/><label>Standard No.: </label>47214 
<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, L9