Spencer, Leonard J. <br/><br/>
The world's minerals. 

 - London :  W.R.Chambers,  1922. 
 - 212 p. :  il. ;  21 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mineralogía<br/>Minerales
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Libro
<br/><br/><label>Universal Decimal Class. No.: </label>549