Autor: Alexander von Humboldt
Personal Narrative of Travels to the Equinoctial Regions of America, During the Years 1799-1804, Vol.3
Alexander von Humboldt, Aimé Bonpland
Personal Narrative of Travels to the Equinoctial Regions of America, During the Years 1799-1804, Vol.2
Alexander von Humboldt, Aimé Bonpland
Cosmos: A Sketch of a Physical Description of The Universe: Introduction
Alexander von Humboldt
Personal Narrative of Travels to the Equinoctial Regions of America, During the Years 1799-1804, Vol.1
Alexander von Humboldt