Multislice Mining for Thick Western Coal Seams T. D. Hackett Published: 1990 Total Pages: 36 Get eBook
Three Potential Longwall Mining Methods for Thick Coal Seams in the Western United States Richard H. Oitto Published: 1979 Total Pages: 44 Get eBook
Thick-seam Mining in the Western United States--geological Considerations Donna L. Boreck Published: 1986 Total Pages: 28 Get eBook
Program of Research Denver Research Center (United States. Bureau of Mines) Published: Total Pages: 118 Get eBook
Review of Recent Research on Organizational and Behavioral Factors Associated with Mine Safety Robert H. Peters Published: 1989 Total Pages: 566 Get eBook
