Arem, Joel E.,  1943- <br/><br/>
Color encyclopedia of gemstones / 
Joel E. Arem 
 - New York :  Van Nostrand Reinhold,  1977 
 - xxv, 149 p., 64 leaves of plates :  col. ill., ;  29 cm. 
<br/><br/> Includes index 
<br/><br/>Bibliography: p. 139-140. 
<br/><br/><label>ISBN: </label>0442203330 
<br/><br/><label>LCCN: </label>77-008834 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Precious stones--Dictionaries