APA (7th ed.) Citation

Gerhardt, A., Dircksen, J., & Höner, P. (1987). Biologie 1N. Bayer. Schulbuch-Verl.

Chicago Style (17th ed.) Citation

Gerhardt, Almut, Jens Dircksen, and Peter Höner. Biologie 1N. München: Bayer. Schulbuch-Verl, 1987.

MLA (9th ed.) Citation

Gerhardt, Almut, et al. Biologie 1N. Bayer. Schulbuch-Verl, 1987.