6428885
9781426421921
The valleys of Aragua form a narrow basin between granitic and calcareous mountains of unequal height.Humboldt, Alexander von is the author of 'Personal Narrative of Travels to the Equinoctial Regions of America, during the Year 1799-1804: Personal Narrative of Travels', published 2006 under ISBN 9781426421921 and ISBN 1426421923.
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