21084761
9781108027984
Humboldt, Alexander von is the author of 'Personal Narrative of Travels to the Equinoctial Regions of the New Continent 7 Volume Set: Personal Narrative of Travels to the Equinoctial Regions ... - Travel and Exploration) (Volume 6)', published 2011 under ISBN 9781108027984 and ISBN 1108027989.
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