@Book{BVMC:1051618, author = {Humboldt, Alexander von}, title = {Voyage de Humboldt et Bonpland. Quatrième partie. Astronomie et magnétisme. Premier Volume}, publisher = {Alicante : Biblioteca Virtual Miguel de Cervantes, 2021}, year = {2021}, url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmc1051618} }