Roof-fall resupport accidents :a study

Author:	Stears, J. H.
Additional Authors:	Bates, Robert C.,, Conway, John P.,
Year:	1976
Document Type:	USBI
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.27:8723
Series:	Information circular - Bureau of Mines ;
Report Number:	8723
Subject:	Mine safety
Link:	https://hdl.handle.net/2027/mdp.39015078453654