Cita APA (7a ed.)

Ette, O. Alexander von Humboldt: The American Hemisphere and Trans-Area Studies. Iberoamericana (Madrid)., Vol. 5 No. 20 (2005),85 5, .

Cita Chicago Style (17a ed.)

Ette, Ottmar. "Alexander Von Humboldt: The American Hemisphere and Trans-Area Studies." Iberoamericana (Madrid). Vol. 5 No. 20 (2005),85 5 ().

Cita MLA (9a ed.)

Ette, Ottmar. "Alexander Von Humboldt: The American Hemisphere and Trans-Area Studies." Iberoamericana (Madrid)., vol. Vol. 5 No. 20 (2005),85 5, .