Tests of a barrier using rock dust in paper bags

Author:	Greenwald, H. P.
Additional Authors:	Howarth, H. C.
Year:	1938
Document Type:	BMRA
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.23:3411
Series:	Report of investigations / United States. Bureau of Mines ;
Report Number:	3411
Subjects:	Coal mines and mining--Safety measures
	Mine explosions
Link:	https://hdl.handle.net/2027/mdp.39015086556035