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coal resources
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Report of Research on Pennsylvania's Coal Resources IPR-19
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Report of Research on Pennsylvania's Coal Resources IPR-20
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Report of Research on Pennsylvania's Coal Resources IPR-31B
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Resource Type
Report
(3)
Creator
CJ Zink
(2)
GL Barthauer
(2)
HB Charmbury
(2)
John Seddon
(2)
John Todhunter
(2)
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Keyword
coal resources
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(3)
interim progress report
(2)
coal research board
(1)
department of environmental resources
(1)
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Pennsylvania State University
(2)
College Of Mineral Industries
(1)
Department Of Mines And Mineral Industries
(1)
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Generic Work
(3)
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pdf (Portable Document Format)
(3)