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Bloomington : Dept. of Natural Resources, Indiana Geological Survey, 1971.
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2.
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3.
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New York : Geological Society of America, 1942.
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4.
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Urbana, Illinois State Geological Survey, 1969.
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5.
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Urbana : Illinois State Geological Survey, 1980.
TN872.I3 A25 no.118 |
Map It |
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6.
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Urbana : Illinois State Geological Survey, 1980.
TN872.I3 A25 no.117 |
Map It |
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7.
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8.
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9.
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Bloomington : State of Indiana, Dept. of Natural Resources, Geological Survey, 1978.
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10.
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Washington : Congress of the United States, Office of Technology Assessment : for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1977.
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