Humboldt, Alexander von <br/><br/>
Reise in die Aequinoktial-Gegenden des neuen Kontinents :  Bd. 2 / 
Alexander von Humboldt. 
 -  Cotta,  [1889]. 
 - 415 S. 
<br/><br/><label>Subjects--Index Terms: </label>ბუნებისმეტყველება 
<br/><br/><label>Universal Decimal Class. No.: </label>91(7)+502