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International Board for Plant Genetic Resources ,  European Cooperative Programme for the Conservation and Exchange of Crop Genetic Resources ,  [Report of a Working Group on Sunflower (fourth meeting): held at the Facoltà di Agraria, Università degli Studi di Pisa, Italy, 11-12 May 1991] ,  Report of a Working Group on Sunflower (fourth meeting): held at the Facoltà di Agraria, Università degli Studi di Pisa, Italy, 11-12 May 1991

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

International Board for Plant Genetic Resources ,  European Cooperative Programme for the Conservation and Exchange of Crop Genetic Resources ,  [Report of a Working Group on Avena (Third meeting): held at the Plant Breeding and Acclimatization Institute, Radzikow, Poland, 7-9 March 1989] ,  Report of a Working Group on Avena (Third meeting): held at the Plant Breeding and Acclimatization Institute, Radzikow, Poland, 7-9 March 1989

International Board for Plant Genetic Resources ,  United Nations Development Programme ,  [Report of a Working Group on Forages (Second Meeting): Held in Carlow, Ireland 7-11 Oct. 1985] ,  Report of a Working Group on Forages (Second Meeting): Held in Carlow, Ireland 7-11 Oct. 1985

International Board for Plant Genetic Resources ,  United Nations Development Programme ,  [Report of a Working Group on Prunus (Second Meeting): Held in Florence, 22-24 October 1985] ,  Report of a Working Group on Prunus (Second Meeting): Held in Florence, 22-24 October 1985

Pearson, M.N. ,  Jackson, G.V.H. ,  Zettler, F.W. ,  Frison, Emile A. ,  Food and Agriculture Organization of the United Nations ,  International Board for Plant Genetic Resources ,  [FAO/IBPGR technical guidelines for the safe movement of vanilla germplasm] ,  FAO/IBPGR technical guidelines for the safe movement of vanilla germplasm

International Board for Plant Genetic Resources ,  Food and Agriculture Organization of the United Nations ,  [Plant Genetic Resources Newsletter: No. 54, June 1983] ,  Plant Genetic Resources Newsletter: No. 54, June 1983

International Board for Plant Genetic Resources ,  Food and Agriculture Organization of the United Nations ,  [Plant Genetic Resources Newsletter: No. 45, April 1981] ,  Plant Genetic Resources Newsletter: No. 45, April 1981

International Board for Plant Genetic Resources ,  Food and Agriculture Organization of the United Nations ,  [Plant Genetic Resources Newsletter: No. 56, December 1983] ,  Plant Genetic Resources Newsletter: No. 56, December 1983

International Board for Plant Genetic Resources ,  Food and Agriculture Organization of the United Nations ,  [Plant Genetic Resources Newsletter: No. 55, September 1983] ,  Plant Genetic Resources Newsletter: No. 55, September 1983