Lives of the brothers Humboldt, Alexander and William /Alexander von Humboldt. English

Chicago citation style
Klencke, Hermann, 1813-1881. Lives of the brothers Humboldt, Alexander and William /,Alexander von Humboldt. English. 1854. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/008451497. (Accessed October 16, 2018.)
APA citation style
Klencke, Hermann, 1813-1881, (1854) Lives of the brothers Humboldt, Alexander and William /,Alexander von Humboldt. English. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/008451497
MLA citation style
Klencke, Hermann, 1813-1881. Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/008451497>.
Note: These citations are programmatically generated and may be incomplete.