Humboldt, A. (1852). Personal narrative of travels to the equinoctial regions of America, during the years 1799-1804. H.G. Bohn.
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Chicago Style (17th ed.) Zitazioa
Humboldt, Alexander. Personal Narrative of Travels to the Equinoctial Regions of America, During the Years 1799-1804. London: H.G. Bohn, 1852.
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MLA (9th ed.) Zitazioa
Humboldt, Alexander. Personal Narrative of Travels to the Equinoctial Regions of America, During the Years 1799-1804. H.G. Bohn, 1852.
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