937 resultados para Permian–Triassic boundary
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"This report is based on research sponsored by the U. S. Navy through the Office of Naval Research, Contract Nonr-2653(00)."
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From 16th annual report of the state geologist, 1898.
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"AEC Contract AT(04-3)-400."
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Bibliographical footnotes.
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Life.
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Mode of access: Internet.
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Mode of access: Internet.
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"Annex number 189. Report relating to the construction of the hypsometric map of the republic of Guatemala drawn under the supervision of the engineering staff of the Guatemala boundary commission, by order of the government of the republic": p. 178-183. Signed: Guatemala, September 29, 1928. Claudio Urrutia.
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Precede al tít.: United States and Mexican Boundary Survey.
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Mode of access: Internet.
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"1974-1981"--Cover.
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Mode of access: Internet.
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First edition, 1859.
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Mode of access: Internet.
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Mode of access: Internet.