This book is still available from Development Bookshop as well as from Amazon (where it received a nice review). The book compares the biogas extension programme in Nepal with those in India and China based on the reports available in 1988. The book has 210 references, although many may not be presently available. It contains details of the biogas technology used in the Nepal programme in 1980s. The Chapter headings of this book are: 1. An Overview of Biogas 2. National Biogas Programmes 3. Organisation and Management 4. How Biogas Works 5. Biogas Plant Designs 6. Ancillary Equipment 7. Bio-gas in Engines 8. Operating a Biogas System 9. Economics of Biogas Systems 10. Community Biogas 11. Biogas Research and Development 12. Politics of Biogas Appendixes I. Basic Building Techniques II. Gas Appliance Design III. Research Techniques IV. Model for Biogas Digestion V. Economic Assumptions The book has 49 diagrams and offers information on biogas production modelling as well as economic analyses of the benefits of biogas in the 1980s. It looks at the floating drum and cast concrete fixed dome designs, as used in Nepal. The book has 201 references.