Evaluation of multitimbered wood crib supports

Author:	Barczak, Thomas M.
Additional Authors:	Tasillo, Carol.
Year:	1991
Document Type:	BMRA
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I28.23:9341.
Series:	Report of investigations / United States. Bureau of Mines ;
Report Number:	9341
Subjects:	Mine roof control--Testing
	Mine timbering
Link:	https://hdl.handle.net/2027/mdp.39015078476028