APA (7th ed.) Citation

Birkenbihl, V. F., Blickhan, C., & Ulsamer, B. (1987). NLP. GABAL-Verl.

Chicago Style (17th ed.) Citation

Birkenbihl, Vera F., Claus Blickhan, and Bertold Ulsamer. NLP. Speyer: GABAL-Verl, 1987.

MLA (9th ed.) Citation

Birkenbihl, Vera F., et al. NLP. GABAL-Verl, 1987.