APA (7th ed.) Citation

Buhr, J. AdProof. Spiegel-Verl. Augstein.

Chicago Style (17th ed.) Citation

Buhr, Jan-Otto. AdProof. [Hamburg]: Spiegel-Verl. Augstein.

MLA (9th ed.) Citation

Buhr, Jan-Otto. AdProof. Spiegel-Verl. Augstein.

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