Yale, Charles G. <br/><br/>
Gold, silver, copper, lead and zinc in California and Oregon in  1915 :   Mines report. 

 - Washington, D.C.  Government Printing Office  1916 
 - pp. 207-257 
 - Mineral Resources of the United States, 1915-Part I. .
<br/><br/> Impreso 
<br/><br/><br/>Ingles 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MINERIA
<br/><br/><label>Dewey Class. No.: </label>