996 resultados para Geological surveys.
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Description based on: May 1981; title from cover.
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Mode of access: Internet.
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Cover title.
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Title from cover.
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Cover date: 1867.
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Mode of access: Internet.
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Mode of access: Internet.
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Mode of access: Internet.
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Mode of access: Internet.
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Some nos. published in House Document series.
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Cover title.
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Mode of access: Internet.
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Mode of access: Internet.
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Mode of access: Internet.
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Half-title: The ornithological notes of Dr. William Cushman Avery, including a catalogue of his Alabama collection. Compiled and edited by Ernest G. Holt.