L'expédition américaine d'Alexander von Humboldt, 1799-1804
<ul><li><a href="//commons.wikimedia.org/wiki/File:Map_Alexander_von_Humboldt_expedition-fr.svg" title="File:Map Alexander von Humboldt expedition-fr.svg">Map Alexander von Humboldt expedition-fr.svg</a>: <a href="//commons.wikimedia.org/wiki/User:Historicair" title="User:Historicair">Historicair</a> (<a href="//commons.wikimedia.org/wiki/User_talk:Historicair" title="User talk:Historicair">talk</a><span style="white-space:nowrap"> <b>·</b></span> <a href="//commons.wikimedia.org/wiki/Special:Contributions/Historicair" title="Special:Contributions/Historicair">contribs</a>)</li>
<li>derivative work: <a href="//commons.wikimedia.org/wiki/User:Rowanwindwhistler" title="User:Rowanwindwhistler">rowanwindwhistler</a> (<a href="//commons.wikimedia.org/wiki/User_talk:Rowanwindwhistler" title="User talk:Rowanwindwhistler">talk</a>)</li></ul>
CC BY-SA 2.5
<a href="//commons.wikimedia.org/wiki/File:Map_Alexander_von_Humboldt_expedition-fr.svg" title="File:Map Alexander von Humboldt expedition-fr.svg">Map Alexander von Humboldt expedition-fr.svg</a>