An edition of Application of stereoscopic (3-D) slides to roof and rib hazard recognition training (1988)
By Edward A. Barrett
Publish Date
1988
Publisher
U.S. Dept. of the Interior, Bureau of Mines
Language
eng
Pages
15
Description:
subjects: Audio-visual aids, Ground control (Mining), Mine roof control, Mine safety, Stereoscopic Photography, Study and teaching, Transparencies in education