APA (7th ed.) Citation

Keller, G. (1952). Briefe (16.-25. Tausend.). Insel-Verlag.

Chicago Style (17th ed.) Citation

Keller, Gottfried. Briefe. 16.-25. Tausend. Leipzig: Insel-Verlag, 1952.

MLA (8th ed.) Citation

Keller, Gottfried. Briefe. 16.-25. Tausend. Insel-Verlag, 1952.

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