Effect of Coal Mine Health and Safety Act of 1969 on respirable dust concentrations in selected underground coal mines

Author:	Jacobson, M.
Additional Authors:	Hughes, Mona E.,, Parobeck, Paul S.
Year:	1971
Document Type:	USBI
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.27:8536
Series:	Information Circular / United States. Bureau of Mines ;
Report Number:	8536
Subjects:	Coal mines and mining--Law and legislation
	Mining engineering--Dust control
	Coal mines and mining--Dust control
	Mine dusts
Link:	https://hdl.handle.net/2027/mdp.39015078514778