Minerals and gems :  A color treasury for collectors and guide to hunting locations / 
Russell P. MacFall . 
 - New York :  Crowell,  [1975]. 
 - 242 p. :  ill.;  28 cm. 
 - 549+679.87(NLA) .
<br/><br/>Bibliography: p. 231. 
<br/><br/><label>ISBN: </label>069000687X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Драгоценные камни--Сбор и сохранение
<br/><br/><label>Universal Decimal Class. No.: </label>549+679.87(NLA)