 |
 | | Better Farming Series 31 - Biogas: What it is; How it is made; How to use it (FAO, 1984, 52 p.) |
| | Better Farming Series 32 - Biogas 2: Building a Better Biogas Unit (FAO, 1986, 47 p.) |
| | The Biogas/Biofertilizer Business Handbook (Peace Corps, 1982, 186 p.) |
| | Biogas Plants (GTZ, 1988, 85 p.) |
| | Biogas plants in Animal Husbandry (GTZ, 1989, 153 p.) |
| | Criteria for the Dissemination of Biogas Plants for Agricultural Farm and Household Systems (GTZ, 1993, 25 p.) |
| | Engines for Biogas (GTZ, 1988, 133 p.) |
| | GATE - 2/90 - Biogas for Developing Countries (GTZ GATE, 1990, 59 p.) |
| | GATE - 4/85 - Renewable Energy - Biogas (GTZ GATE, 1985, 56 p.) |
| | Improved Biogas Unit for Developing Countries (GTZ, 1991, 98 p.) |
| | The Purification of Biogas (GTZ, 1985, 33 p.) |
| | World Energy Assessment - Energy and the Challenge of Sustainability - Overview (UNDESA - UNDP - WEA - WEC, 2000, 42 p.) |
| | World Energy Assessment - Energy and the Challenge of Sustainability (UNDESA - UNDP - WEA - WEC, 2000, 517 p.) |
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