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Development of a Mine Hoist and Ore Pass Research Facility

Michael J. Beus

出版	U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, 1997
URL	http://books.google.com.hk/books?id=NVJ2HAAACAAJ&hl=&source=gbs_api