Method and cost of mining tungsten ore at the Nevada-Massachusetts Co. mines, at Mill City, Nev.

Author:	Heizer, Ott F.
Year:	1930
Document Type:	MAIN
Issuing Agency:	U.S. Dept. of Commerce, Bureau of Mines,
SUDOC:	C 22.11:6284
Series:	Information circular ;
Report Number:	6284
Subjects:	Mineral industries--Nevada
	Tungsten ores
Link:	https://hdl.handle.net/2027/mdp.39015095083724