APA (7th ed.) Citation

Schaefer, A. (1984). Probleme Schopenhauers. Berlin-Verlag Spitz.

Chicago Style (17th ed.) Citation

Schaefer, Alfred. Probleme Schopenhauers. Berlin: Berlin-Verlag Spitz, 1984.

MLA (8th ed.) Citation

Schaefer, Alfred. Probleme Schopenhauers. Berlin-Verlag Spitz, 1984.