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1BookPublished 1982“…United Nations. Economic Commission for Europe. Timber Committee…”
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2BookPublished 1979“…United Nations. Economic Commission for Europe. Timber Committee…”
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3JournalPublished 1955“…United Nations. Economic Commission for Europe. Timber Committee. Joint FAO/ECE Secretariat…”
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4Bookby Sundberg, U. (Ulf)“…United Nations. Economic Commission for Europe. Timber Committee…”
Published 1955