APA (7th ed.) Citation

Meyer, A., & Hentschel, C. (1969). Alejandro de Humboldt: 1769-1969. Inter Nationes.

Chicago Style (17th ed.) Citation

Meyer, Adolf, and Cedric Hentschel. Alejandro De Humboldt: 1769-1969. Bad Godesberg, [Alemania]: Inter Nationes, 1969.

MLA (8th ed.) Citation

Meyer, Adolf, and Cedric Hentschel. Alejandro De Humboldt: 1769-1969. Inter Nationes, 1969.

Warning: These citations may not always be 100% accurate.