Search Results - Illinois State Geological Survey. Educational Extension Division

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    Mineral industries of Illinois Revised January 1, 1961. by Illinois State Geological Survey. Educational Extension Division

    Published: State of Illinois, Dept. of Registration and Education, Division of the State Geological Survey, 1961
    Description: 1 map : color ; on sheet 130 x 76 cm folded to 31 x 22 cm.
    “…Illinois State Geological Survey. Educational Extension Division…”
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    Mineral industries of Illinois

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