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.
Citace podle 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, a United States. Mining Enforcement and Safety Administration. Institute on Coal Mine Health and Safety: Proceedings. Golden, Colo.: Colorado School of Mines.
Citace podle MLA (8th ed.)Institute on Coal Mine Health and Safety, et al. Institute on Coal Mine Health and Safety: Proceedings. Colorado School of Mines.