APA (7th ed.) Citation

Erpel, F., & Schumann, E. (1965). Sämtliche Briefe. Kindler Verlag.

Chicago Style (17th ed.) Citation

Erpel, Fritz, and Eva Schumann. Sämtliche Briefe. Zürich: Kindler Verlag, 1965.

MLA (8th ed.) Citation

Erpel, Fritz, and Eva Schumann. Sämtliche Briefe. Kindler Verlag, 1965.

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