APA (7th ed.) Citation

Portner, J. (2010). Besser verhandeln: Das Trainingsbuch. GABAL.

Chicago Style (17th ed.) Citation

Portner, Jutta. Besser Verhandeln: Das Trainingsbuch. Offenbach: GABAL, 2010.

MLA (9th ed.) Citation

Portner, Jutta. Besser Verhandeln: Das Trainingsbuch. GABAL, 2010.

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