Citazione Stile APA (7a Edizione)

Humboldt, F. E. A. (1852). Personal narrative of travels to the Equinoctial regions of America during the years 1799-1804. Henry G. Bohn.

Citazione stile Chigago Style (17a edizione)

Humboldt, Federico Enrique Alejandro. Personal Narrative of Travels to the Equinoctial Regions of America During the Years 1799-1804. London, England, United Kingdom: Henry G. Bohn, 1852.

Citatione MLA (9a ed.)

Humboldt, Federico Enrique Alejandro. Personal Narrative of Travels to the Equinoctial Regions of America During the Years 1799-1804. Henry G. Bohn, 1852.