APA (7th ed.) Citation

Lay, R. (1992). Vom Sinn des Lebens. Business-Training.

Chicago Style (17th ed.) Citation

Lay, Rupert. "Vom Sinn Des Lebens." Business-Training 1992.

MLA (9th ed.) Citation

Lay, Rupert. "Vom Sinn Des Lebens." Business-Training, 1992.

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