Water Resources Data, Illinois, Water Year 1989, Vol. 2
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Geology topics
P.D. Hayes
Publications and source records attributed to P.D. Hayes.
Water Resources Data, Illinois, Water Year 1988, Vol. 1
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Water Resources Data, Illinois, Water Year 1988, Vol. 2
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Water Resources Data, Illinois, Water Year 1987, Vol. 1
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Water Resources Data, Illinois, Water Year 1987, Vol. 2
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Water Resources Data, Illinois, Water Year 1986, Vol. 1
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Water Resources Data, Illinois, Water Year 1986, Vol. 2
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Water Resources Data, Illinois, Water Year 1985, Vol. 1
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Water Resources Data, Illinois, Water Year 1985, Vol. 2
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Water Resources Data, Illinois, Water Year 1984, Vol. 1
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Water Resources Data, Illinois, Water Year 1984, Vol. 2
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Water Resources Data, Illinois, Water Year 1983, Vol. 1
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Water Resources Data, Illinois, Water Year 1983, Vol. 2
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Water Resources Data, Illinois, Water Year 1982, Vol. 1
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Water Resources Data, Illinois, Water Year 1982, Vol. 2
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Water Data Report↗