Tungsten.

Author:	Vanderburg, William O.
Year:	1935
Document Type:	USBI
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.27:6821
Series:	Information circular / United States Department of the Interior, Bureau of Mines ;
Report Number:	6821
Subjects:	Tungsten
	Tungsten industry
Link:	https://hdl.handle.net/2027/mdp.39015077568361