APA (7th ed.) Citation

Welker, M. (1989). Wahrheit. Was ist Wahrheit?.

Chicago Style (17th ed.) Citation

Welker, Michael. "Wahrheit." Was Ist Wahrheit? 1989.

MLA (9th ed.) Citation

Welker, Michael. "Wahrheit." Was Ist Wahrheit?, 1989.

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