Siebenthal, C.E. <br/><br/>
Zinc and cadmium in 1913 :   General Report. 

 - Washington, D.C.  Government Printing Office  1914 
 - pp. 621-671 
<br/><br/> Impreso 
<br/><br/><br/>Ingles 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MINERIA