1
by Humboldt Alexander von
Published 1811
Book
2
by Humboldt Alexandre de
Published 1811
Book
3
by Humboldt, Alexander ¬von
Published 1822
Book
8
by Humboldt, Alexander ¬von
Published 1827
Book
12
Published 1828
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18
by Schlagintweit, Robert ¬von
Published 1871
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19
Published 1871
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