Institute on Coal Mine Health and Safety, Colorado School of Mines, United States. Mine Safety and Health Administration, United States. Bureau of Mines, & United States. Mining Enforcement and Safety Administration. Institute on Coal Mine Health and Safety: Proceedings. Colorado School of Mines.
Cita Chicago (17th ed.)Institute on Coal Mine Health and Safety, Colorado School of Mines, United States. Mine Safety and Health Administration, United States. Bureau of Mines, i United States. Mining Enforcement and Safety Administration. Institute on Coal Mine Health and Safety: Proceedings. Golden, Colo.: Colorado School of Mines.
Cita MLA (8th ed.)Institute on Coal Mine Health and Safety, et al. Institute on Coal Mine Health and Safety: Proceedings. Colorado School of Mines.