Humboldt, A. v. Aspects of nature, in different lands and different climates (Vol. 1 of 2) with scientific elucidations.
Chicago-viite (17. p.)Humboldt, Alexander von. Aspects of Nature, in Different Lands and Different Climates (Vol. 1 of 2) with Scientific Elucidations.
MLA-viite (9. p.)Humboldt, Alexander von. Aspects of Nature, in Different Lands and Different Climates (Vol. 1 of 2) with Scientific Elucidations.
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