Coal miner today (motion picture) - United States. Bureau of Mines; National Audio Visual Center (United States of America : National Audiovisual Center, 1970)
Offers an underground tour of a coal mine, showing the men and machinery as they perform their various specialized jobs. Gives reasons for each job and the hazards involved. Stresses safety procedures with attention to the correct way of doing a job.
Bahan rosak (Lupus)
Keywords: Coal mines and mining; Coal -- miners; Mine safety