APA (7th ed.) Citation

Humboldt, A. v., & Hauff, H. (1859). Gesammelte Werke. Cotta.

Chicago Style (17th ed.) Citation

Humboldt, Alexander von, and Hermann Hauff. Gesammelte Werke. Stuttgart: Cotta, 1859.

MLA (8th ed.) Citation

Humboldt, Alexander von, and Hermann Hauff. Gesammelte Werke. Cotta, 1859.

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