Application of stereoscopic (3-D) slides to roof and rib hazard recognition training

Author:	Barrett, Edward A.
Additional Authors:	Peters, Robert H., Wiehagen, William J.
Year:	1988
Document Type:	USBI
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.27:9210
Series:	Information circular / Bureau of Mines ;
Report Number:	9210
Subjects:	Mine roof control
	Ground control (Mining)
	Photography, Stereoscopic
	Transparencies in education
	Mine safety--Study and teaching--Audio-visual aids
Link:	https://hdl.handle.net/2027/mdp.39015078457804