Anchorage capacities in thick coal roofs

Author:	Tadolini, Stephen C.
Year:	1985
Document Type:	USBI
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.27:9058
Series:	Information circular / United States Department of the Interior, Bureau of Mines ;
Report Number:	9058
Subjects:	Coal mines and mining--Safety measures
	Mine roof bolting
Link:	https://hdl.handle.net/2027/mdp.39015078465229