Dunlop, J. P. <br/><br/>
Gold and Silver in 1921 :   (General Report). 

 - Washington, D.C.  Government Printing Office  1923 
 - pp. 429-466 
<br/><br/> Impreso 
<br/><br/><br/>Ingles 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MINERIA
<br/><br/><label>Dewey Class. No.: </label>