966 resultados para Mines subsidences


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Mode of access: Internet.

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"This copy was printed for the Right Honourable Lord Bexley."

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"Project no. 60.040."

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"Cooperating agencies: Illinois State Geological Survey, Dept. of Natural Resources ; Bureau of Mines, United States Dept. of the Interior."

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"Cooperating agencies: Illinois State Geological Survey, Dept. of Natural Resources ; Bureau of Mines, United States Dept. of the Interior."

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"Illinois Mine Subsidence Research Program"