Dust problems in the mines of the Pennsylvania anthracite region

Author:	Johnson, Leland H.
Year:	1947
Document Type:	USBM
Issuing Agency:	U.S. G.P.O.,
SUDOC:	I 28.7:704
Series:	Technical paper / United States Department of the Interior, Bureau of Mines ;
Report Number:	704.
Subjects:	Anthracite coal--Pennsylvania
	Dust control
Link:	https://hdl.handle.net/2027/mdp.39015086471011