APA (7th ed.) Citation

(2023). Seen/unseen. Verlag Kettler.

Chicago Style (17th ed.) Citation

Seen/unseen. Dortmund: Verlag Kettler, 2023.

MLA (9th ed.) Citation

Seen/unseen. Verlag Kettler, 2023.

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