1.
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Urbana : Illinois State Geological Survey, 1980.
TN872.I3 A25 no.117 |
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2.
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Urbana : Illinois State Geological Survey, 1980.
TN872.I3 A25 no.118 |
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3.
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4.
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Champaign, IL : Illinois State Geological Survey, 1981.
TN872.I3 A25 no.121 |
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5.
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Urbana : Illinois State Geological Survey, 1975.
TN872.I3 .I44 no.106 |
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6.
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Urbana, Illinois State Geological Survey, 1969.
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7.
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8.
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Urbana : Illinois State Geological Survey, 1978.
TN872.I3 A25 no.114 |
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9.
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Urbana : Illinois State Geological Survey, 1965.
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10.
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Urbana, Illinois State Geological Survey, 1970.
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