Field studies in an unsupported roof, York Canyon Coal Mine, Raton, N. Mex.

Author:	Stateham, Raymond M.
Year:	1974
Document Type:	BMRA
Issuing Agency:	Bureau of Mines,
SUDOC:	I 28.23:7886
Series:	Report of investigations / United States. Bureau of Mines ;
Report Number:	7886
Subjects:	Mining engineering--Measurement
	Remote sensing
Link:	https://hdl.handle.net/2027/mdp.39015078539452