Não informado. (2017). Forestry Commission Research and Development Paper. Forestry Commission.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Forestry Commission Research and Development Paper. London: Forestry Commission, 2017.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Forestry Commission Research and Development Paper. Forestry Commission, 2017.
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