968 resultados para Indiana. Dept. of Geology and Natural Resources
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Sponsored by: Illinois Department of Energy and Natural Resources.
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"Contract: EH 10."
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"October, 1983."
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Vols. for <1987-1988,1990 include report of Illinois Coal Development Board.
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"ILENR/RE-PR-93/05(94)
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Prepared for Illinois Dept. of Energy and Natural Resources, Energy and Environmental Affairs Division.
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"Contract: ER 57."
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"ILENR/RE-WR-93/01."
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"ILENR/CD-87/02."
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"December, 1982."
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Project no. EA44.
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"August, 1982."
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Prepared for Illinois Dept. of Energy and Natural Resources, Energy and Environmental Affairs Division.
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"Contract WR 22."
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"January 1985."