APA (7th ed.) Citation

Schettler, G. (1989). Der Herzinfarkt. Singularitäten.

Chicago Style (17th ed.) Citation

Schettler, Gotthard. "Der Herzinfarkt." Singularitäten 1989.

MLA (9th ed.) Citation

Schettler, Gotthard. "Der Herzinfarkt." Singularitäten, 1989.

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