"permaculture, ecology and agriculture: an investigation into permaculture theory and practice using two case studies in northern new south wales" honours thesis, human ecology program, department of geography, australian national university 1993* mollison, bill & david holmgren "permaculture one".
Engelska
"permaculture, ecology and agriculture: an investigation into permaculture theory and practice using two case studies in northern new south wales" honours thesis, human ecology program, department of geography, australian national university 1993* macnamara, looby.
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