Shaft-sinking methods and costs and cost of plant and equipment at the Fad shaft, Eureka Corp., Ltd., Eureka, Nev.

Author:	Mitchell, George W.
Additional Authors:	Johnson, A. C.
Year:	1949
Document Type:	USBI
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.27:7495
Series:	Information circular / United States Department of the Interior, Bureau of Mines ;
Report Number:	7495
Subjects:	Shaft sinking--Technique
	Shaft sinking--Costs
	Mining engineering
Link:	https://hdl.handle.net/2027/mdp.39015078463752