FFOLLIIOTT, P. F. (1983). Environmentally Sound Small-scale Forestry Projects. Vita Publications.
Lua i Stíl Chicago (17ú heag.)FFOLLIIOTT, Peter F. Environmentally Sound Small-scale Forestry Projects. Vita Publications, 1983.
Lua MLA (8ú heag.)FFOLLIIOTT, Peter F. Environmentally Sound Small-scale Forestry Projects. Vita Publications, 1983.
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