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  1. This folder contains useful information on being self-sufficient with such topics as making a garden, growing trees, food processing, simple stove, animal care,sanitation and providing clean water. page numbers for each section, illustrations
  2. This publication discusses the background and history of digesters, the biology of digestion, raw materials, the gas, digesters, using gas, using sludge, and building a sump digester, and building an inner tube digester.
  3. This booklet has been written for community development workers in developing countries who are not technicians in the area of water resources. It is meant to serve as a general guide when planning environmentally sound small-scale water projects, that is, projects which protect and conserve...