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1by Vesikallio, H. (Central Union of Agricultural Producers, Helsinki (Finland)), Joint FAO/ECE/ILO Committee on Forest Working Techniques and Training of Forest Workers, Geneva (Switzerland) eng, Seminar on Extension Activities for Owners of Small Woodlands (Woodlots) eng 28 Sep - 1 Oct 1987 Fredericton, New Brunswick (Canada)
Published 1988Texto bibliotecaFAO IT