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close this bookThe Biogas/Biofertilizer Business Handbook (Peace Corps, 1985)
close this folderAppendix
View the documentNew ideas
View the documentComposting
View the documentBioinsecticides
View the documentFerrocement
View the documentFacts & Figures
View the documentSources & Resources
View the documentFeasibility Studies
View the documentProblem solving
View the documentVocabulary