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National coal resource assessment methodology [microform] : comparison of resource calculation methods by two geographic information systems (GIS) / by Susan J. Tewalt (Open-file report ; 98-365)

National coal resource assessment methodology [microform] : comparison of resource calculation methods by two geographic information systems (GIS) / by Susan J. Tewalt (Open-file report ; 98-365)
Microform図書
1998<YCA-I 19.76:98-365>
National Diet Library
  • Author HeadingTewalt, Susan J Geological Survey (U.S.)

Concentrations of platinum group elements in 122 U.S. coal samples [microform] / by Charles L. Oman, Robert B. Finkelman, and Susan J. Tewalt (U.S. Geological Survey open-file report ; 97-53)

Concentrations of platinum group elements in 122 U.S. coal samples [microform] / by Charles L. Oman, Robert B. Finkelman, and Susan J. Tewalt (U.S. Geological Survey open-file report ; 97-53)
Microform図書
1997<YCA-I 19.76:97-53>
National Diet Library
  • Author HeadingOman, Charles L Finkelman, Robert B. (Robert Barry) Tewalt, Susan J Geological Survey (U.S.)

Platinum-group elements in sedimentary environments in the conterminous United States / by Jocelyn A. Peterson ; with a section on Platinum-group elements in coal by Robert B. Finkelman and Susan J. Tewalt (U.S. Geological Survey bulletin ; 2049-A) (Geology and geologic environments permissive for platinum-group elements in the conterminous United States ; A)

Platinum-group elements in sedimentary environments in the conterminous United States / by Jocelyn A. Peterson ; with a section on Platinum-group elements in coal by Robert B. Finkelman and Susan J. Tewalt (U.S. Geological Survey bulletin ; 2049-A) (Geology and geologic environments permissive for platinum-group elements in the conterminous United States ; A)
Microform図書
1994<YCA-I 19.3:2049-A>
National Diet Library
  • Author HeadingPeterson, Jocelyn A Finkelman, Robert B. (Robert Barry) Tewalt, Susan J

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