Publication
[Washington, D.C.] : Department of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health
Notes
Merged with: Mining facts for ..., and: Underground and surface mining facts, and: Metal mining facts, and: Nonmetal mining facts, and: Stone mining facts, and: Sand and gravel mining facts, and: Coal contractor mining facts, and: Noncoal contractor mining facts, to form: Mining facts (National Institute for Occupational Safety and Health).