APA (7th ed.) Citation

(2002). Biogas - die universelle Energie von morgen.

Chicago Style (17th ed.) Citation

Biogas - Die Universelle Energie Von Morgen. Freising, 2002.

MLA (9th ed.) Citation

Biogas - Die Universelle Energie Von Morgen. 2002.

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