lexander von Humboldt :  bibliographic 

 - Leipzig :  Deutsche Bucherei,  1959 
 - 44 p. ;  27 cm. 
<br/><br/><label>Subjects--Personal Names: </label><br/>Humboldt, Alexander von, 1769-1859 
<br/><br/><label>Dewey Class. No.: </label>012