Não informado. (2017). Forestry Equipment Notes. Food and Agriculture Organization of the United Nations.
Lua i Stíl Chicago (17ú heag.)Não informado. Forestry Equipment Notes. Rome: Food and Agriculture Organization of the United Nations, 2017.
Lua MLA (8ú heag.)Não informado. Forestry Equipment Notes. Food and Agriculture Organization of the United Nations, 2017.
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