1.
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Washington : U.S. G.P.O. ; Denver, CO : For sale by U.S. Geological Survey, Information Services, 1996.
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2.
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Urbana : Illinois State Geological Survey, 1914.
QE105 .M66 no. 1 |
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3.
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4.
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Washington : U.S. G.P.O. ; Denver, CO : For sale by the Books and Open-File Reports Section, U.S. Geological Survey, 1987.
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5.
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6.
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Bloomington, State of Indiana, Dept. of Conservation, Geological Survey, 1960.
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7.
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[Bloomington : Dept. of Geology, Indiana University, 1973?]
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8.
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9.
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Urbana, Division of the Illinois State Geological Survey, 1958.
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10.
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