APA (7th ed.) Citation

Wagner, C., & Gregor-Dellin, M. (1976). Die Tagebücher. Piper.

Chicago Style (17th ed.) Citation

Wagner, Cosima, and Martin Gregor-Dellin. Die Tagebücher. München, Zürich: Piper, 1976.

MLA (8th ed.) Citation

Wagner, Cosima, and Martin Gregor-Dellin. Die Tagebücher. Piper, 1976.

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