APA (7th ed.) Citation

Forna, A., & Schwenk, S. (2007). Abies Steine. Berlin-Verl.

Chicago Style (17th ed.) Citation

Forna, Aminatta, and Sabine Schwenk. Abies Steine. Berlin: Berlin-Verl, 2007.

MLA (9th ed.) Citation

Forna, Aminatta, and Sabine Schwenk. Abies Steine. Berlin-Verl, 2007.

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