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1by Harnaj, V., International Federation of Beekeepers' Associations, Bucharest (Romania). International Beekeeping Technology and Economy Inst. eng, Conf. on Dev. of World Apicultural Trade eng 27-28 Jun 1977 Geneva (Switzerland), Skunke, S.O., Borneck, R., Buia, L., International Trade Centre UNCTAD/GATT, Geneva (Switzerland). Div. of Technical Services eng
Published 1978Texto bibliotecaFAO IT