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TitleDateType
1 Underground Coal Thermal Treatment as a Potential Low-Carbon Energy SourceText
2 Brief description of the mining, material handling, processing and economics of the Western Tar Sands Pilot Plant Project1981-12Text
3 California production statistics-1992: Significant statistics1992Text
4 California production statistics-1993: Significant statistics1993Text
5 California production statistics-1987: Significant statistics1987Text
6 California production statistics-1989: Significant statistics1989Text
7 California production statistics-1990: Significant statistics1990Text
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