Deformation monitoring of underground openings by photographic techniques

Author:	McVey, James R.
Year:	1974
Document Type:	BMRA
Issuing Agency:	U.S. Bureau of Mines,
SUDOC:	I 28.23:7912
Series:	Report of investigations / United States. Bureau of Mines ;
Report Number:	7912
Subjects:	Rock deformation--Measurement
	Mining engineering--Measurement
Link:	https://hdl.handle.net/2027/mdp.39015078539684