APA (7th ed.) Citation

Bernt, P., & Gülland, J. Biofilter - Technik für saubere Luft.

Chicago Style (17th ed.) Citation

Bernt, Peter, and Joachim Gülland. Biofilter - Technik Für Saubere Luft.

MLA (9th ed.) Citation

Bernt, Peter, and Joachim Gülland. Biofilter - Technik Für Saubere Luft.

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