APA (7th ed.) Citation

Howald, E. (1944). Wilhelm von Humboldt. Rentsch.

Chicago Style (17th ed.) Citation

Howald, Ernst. Wilhelm Von Humboldt. Erlenbach-Zürich: Rentsch, 1944.

MLA (9th ed.) Citation

Howald, Ernst. Wilhelm Von Humboldt. Rentsch, 1944.

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