(1986). Production and utilization of biogas in rural areas of industrialized and developing countries. GTZ.
Chicago-Zitierstil (17. Ausg.)Production and Utilization of Biogas in Rural Areas of Industrialized and Developing Countries. Eschborn: GTZ, 1986.
MLA-Zitierstil (9. Ausg.)Production and Utilization of Biogas in Rural Areas of Industrialized and Developing Countries. GTZ, 1986.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.