Observations of safety practices and conditions in Japanese coal mines

Author:	Warncke, Russell G.
Year:	1949
Document Type:	USBI
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.27:7542
Series:	Information circular / Bureau of Mines ;
Report Number:	7542
Subjects:	Mine safety
	Coal mines and mining--Japan
Link:	https://hdl.handle.net/2027/mdp.39015078464180