Alexander von Humboldt :  a metebiography / 
Nicolaas A. Rupke. 
 - 320 pages :  illustrations ;  23 cm. 
<br/><br/><label>ISBN: </label>3631539320 
<br/><br/><label>Subjects--Personal Names: </label><br/>Humboldt, Alexander von, 1769-1859. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Scientists--Germany--Biography.