Geology of world gem deposits / 
edited by S.L. VanLandingham. 
 - New York :  Van Nostrand Reinhold,  c1985. 
 - x, 406 p. :  ill. 
<br/><br/><label>ISBN: </label>0442288409 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Precious stones.<br/>Gems.
<br/><br/><label>LC Class. No.: </label>QE392  / .G53 1985 
<br/><br/><label>Dewey Class. No.: </label>553.8�19