697 resultados para Geological Samples Library (Illinois State Geological Survey)


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At head of title: Department of the Interior. United States Geological Survey.

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Issues for Dec. 1988, July 1989 distributed to depository libraries in microfiche.

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No. 1 issued as its Report for 1881/82.

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Chemical abstracts

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"Library reference books": p.2-5.

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"Critical Trends Assessment Program."--Cover.

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No. 1 accompanied by summary called I-S.

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"Examines an area in extreme northwestern Illinois formed by the Galena, Apple, and Plum River systems ... designated a state Resource Rich Area."--P. iii.