20 resultados para Geology, Economic.
em University of Michigan
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Description based on: Vol. 25, no. 1 (Jan.-Feb. 1930); title from cover.
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Mode of access: Internet.
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Caption-title.
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Mode of access: Internet.
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Mode of access: Internet.
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"List of authors and works referred to in the text": p. 483-486.
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Available on demand as hard copy or computer file from Cornell University Library.
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"April 1963."
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Mode of access: Internet.
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Maps in pocket comprise appendix C, Geologic characteristics of fine aggregate sources, and appendix D, Fine aggregate source locations.
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Each vol. has also a distinctive title.
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Mode of access: Internet.
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Mode of access: Internet.
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Title from cover.
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v. 1. Minerals.--v. 2. Vegetables.--v. 3. Animals.