APA (7th ed.) Citation

(1990). Willys Erben. Ahriman-Verlag.

Chicago Style (17th ed.) Citation

Willys Erben. Ahriman-Verlag, 1990.

MLA (8th ed.) Citation

Willys Erben. Ahriman-Verlag, 1990.

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