Smith, G. F. Herbert. <br/><br/>
Gemstones / 
G. F. Herbert Smith. 
 - 13th ed. 
 - London :  Methuen,   c 1966. 
 - 560 p. :  ills. ;  22 cm. 
<br/><br/> Includes index. 
<br/><br/>319  319 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Gemstone.
<br/><br/><label>Dewey Class. No.: </label>553.8 / S57g