Pearl, Richard M. <br/><br/>
Popular geomology. 

 - New York :  J.Wiley,  1948. 
 - 316 p. :  il. ;  20 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mineralogía<br/>Gema
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Libro
<br/><br/><label>Universal Decimal Class. No.: </label>549.091