1000 resultados para Illinois State Geological Survey
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Atlases accompany v. 1, pt. 1; v. 2; and v. 5-7.
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Cover title: Establishing educational priorities through the Illinois problems index survey instruments.
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"Printed November 1988."
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"Prepared for U.S. Geological Survey, Environmental Management Technical Center."
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"ISWS/RI-116/91."
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The Critical Trends Assessment Program (CTAP) documents changes in ecological conditions.
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"SWS Contract report 429." -- Cover.
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Both 2nd and 3rd reports are for the years 1856 and 1857.
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Mode of access: Internet.
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"October 20, 1962."
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Title varies slightly.
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Mode of access: Internet.
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"Revised January 1964"--P. 10.
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Title Varies: 1st: Annual Report of the State Geologist; 2d, 5th: Annual Report on the Geological Exploration; 3d-4th, 6th: Annual Report on the Geological Survey
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7