APA (7th ed.) Citation

Tillich, P., & Scharlemann, R. P. (1988). Main works. Main works = Hauptwerke.

Chicago Style (17th ed.) Citation

Tillich, Paul, and Robert P. Scharlemann. "Main Works." Main Works = Hauptwerke 1988.

MLA (8th ed.) Citation

Tillich, Paul, and Robert P. Scharlemann. "Main Works." Main Works = Hauptwerke, 1988.