Yale, Charles G. <br/><br/>
Gold, silver, copper, lead and zinc in California an Oregon in  1913 :   Mines Report. 

 - Washington, D.C.  Government Printing Office  1914 
 - pp. 459-522 
<br/><br/> Impreso 
<br/><br/><br/>Ingles 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MINERIA