WALTON, JAMES <br/><br/>
PHYSICAL GEMMOLOGY 

 - 1ST ED. 
 - LONDON Reino Unido  SIR ISAAC PITMAN & SONS  1952 
 - 304 
<br/><br/><label>LCCN: </label>20731 
<br/><br/><label>Dewey Class. No.: </label>553.8