Mine explosions in the United States during the fiscal year ending June 30, 1929

Author:	Harrington, D.
Additional Authors:	Owings, C. W.
Year:	1929
Document Type:	MAIN
SUDOC:	C 22.11:6178
Series:	Information circular / Bureau of Mines ;
Report Number:	6178
Subject:	Mine explosions--United States
Link:	https://hdl.handle.net/2027/mdp.39015095078724