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International Plant Genetic Resources Institute ,  European Cooperative Programme for Crop Genetic Resources Networks ,  United Nations Development Programme ,  [Report of a Working Group on Sunflower, held in Novi Sad, Yugoslavia 20-23 July 1984] ,  Report of a Working Group on Sunflower, held in Novi Sad, Yugoslavia 20-23 July 1984

International Plant Genetic Resources Institute ,  European Cooperative Programme for Crop Genetic Resources Networks ,  United Nations Development Programme ,  [Report of a Working Group on Prunus, held in Lund 24-27 May 1983] ,  Report of a Working Group on Prunus, held in Lund 24-27 May 1983

International Board for Plant Genetic Resources ,  European Cooperative Programme for Crop Genetic Resources Networks ,  United Nations Development Programme ,  [Report of a Working Group on Allium (Second meeting): Held in Olomouc, Czechoslovakia, 7-9 Jan 1986] ,  Report of a Working Group on Allium (Second meeting): Held in Olomouc, Czechoslovakia, 7-9 Jan 1986

International Board for Plant Genetic Resources ,  United Nations Development Programme ,  [Report of a Working Group on Avena (Second Meeting): Held in Braunschweig, Federal Republic of Germany, 18-20 March 1986] ,  Report of a Working Group on Avena (Second Meeting): Held in Braunschweig, Federal Republic of Germany, 18-20 March 1986

United Nations Development Programme ,  International Board for Plant Genetic Resources ,  [Report of a Working Group on Sunflower (Second Meeting): Held in Szeged, Hungary, 15-17 April 1986] ,  Report of a Working Group on Sunflower (Second Meeting): Held in Szeged, Hungary, 15-17 April 1986

United Nations Development Programme ,  International Board for Plant Genetic Resources ,  European Cooperative Programme for the Conservation and Exchange of Crop Genetic Resources ,  [Report of a Working Group on Allium: Held in Tapioszele, Hungary, 29-31 March 1984] ,  Report of a Working Group on Allium: Held in Tapioszele, Hungary, 29-31 March 1984