(2011). BIOGAS can do it - naturally: 20 years of biogas conference ; 20th Annual Conference and Biogas Trade BIOGAS ; 11 - 13 January 2011 Nuremberg, Germany ; conference proceedings. Fachverband Biogas e.V.
Chicago-Zitierstil (17. Ausg.)BIOGAS Can Do It - Naturally: 20 Years of Biogas Conference ; 20th Annual Conference and Biogas Trade BIOGAS ; 11 - 13 January 2011 Nuremberg, Germany ; Conference Proceedings. Freising: Fachverband Biogas e.V, 2011.
MLA-Zitierstil (9. Ausg.)BIOGAS Can Do It - Naturally: 20 Years of Biogas Conference ; 20th Annual Conference and Biogas Trade BIOGAS ; 11 - 13 January 2011 Nuremberg, Germany ; Conference Proceedings. Fachverband Biogas e.V, 2011.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.