Accident experience and cost in California metal mines

Author:	Ash, S. H.
Year:	1935
Document Type:	USBI
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.27:6861
Series:	Information circular / United States Department of the Interior, Bureau of Mines ;
Report Number:	6861
Subjects:	Mines and mineral resources--California
	Quarries and quarrying--California
	Mine accidents
Link:	https://hdl.handle.net/2027/mdp.39015077568676