British Columbia. Ministry of Energy, M. a. P. R. R. M. B., & Branch, B. C. M. R. D. E. a. I. (1992). Health, safety and reclamation code for mines in British Columbia (1992 ed.). Ministry of Energy, Mines and Petroleum Resources.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)British Columbia. Ministry of Energy, Mines and Petroleum Resources. Resource Management Branch, و British Columbia. Mineral Resources Division. Engineering and Inspection Branch. Health, Safety and Reclamation Code for Mines in British Columbia. 1992 ed. Victoria, B.C.: Ministry of Energy, Mines and Petroleum Resources, 1992.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)British Columbia. Ministry of Energy, Mines and Petroleum Resources. Resource Management Branch, و British Columbia. Mineral Resources Division. Engineering and Inspection Branch. Health, Safety and Reclamation Code for Mines in British Columbia. 1992 ed. Ministry of Energy, Mines and Petroleum Resources, 1992.