Webster, Robert <br/><br/>
Gems: Their sources, descriptions and identification 

 - London  Butterworths  1983 
 - xxii,1006p. 
<br/><br/><label>ISBN: </label> UKP 40.00 
<br/><br/><label>Source: </label> UKP 40.00 
<br/><br/><label>Dewey Class. No.: </label>553.8 WEB