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Food and Agriculture Organization of the United Nations ,  [Plant Introduction Newsletter: No. 11, December 1962] ,  Plant Introduction Newsletter: No. 11, December 1962

International Plant Genetic Resources Institute ,  [Newsletter for Europe: No. 23, April 2002] ,  Newsletter for Europe: No. 23, April 2002

Food and Agriculture Organization of the United Nations ,  [Plant Introduction Newsletter: No. 20, August 1967] ,  Plant Introduction Newsletter: No. 20, August 1967

Food and Agriculture Organization of the United Nations ,  [Plant Introduction Newsletter: No. 23, January 1970] ,  Plant Introduction Newsletter: No. 23, January 1970

International Plant Genetic Resources Institute ,  [Bulletin pour l'Afrique au Sud du Sahara: No. 17 Julliet 2002] ,  Bulletin pour l'Afrique au Sud du Sahara: No. 17 Julliet 2002

International Plant Genetic Resources Institute ,  [Newsletter for Sub-Saharan Africa: No. 17 July 2002] ,  Newsletter for Sub-Saharan Africa: No. 17 July 2002

Food and Agriculture Organization of the United Nations ,  [Plant Introduction Newsletter: No. 14, October 1964] ,  Plant Introduction Newsletter: No. 14, October 1964

Food and Agriculture Organization of the United Nations ,  [Plant Introduction Newsletter: No. 12, November 1963] ,  Plant Introduction Newsletter: No. 12, November 1963

Food and Agriculture Organization of the United Nations ,  [Plant Introduction Newsletter: No. 17, September 1967] ,  Plant Introduction Newsletter: No. 17, September 1967

Food and Agriculture Organization of the United Nations ,  [Plant Introduction Newsletter: No. 16, October 1966] ,  Plant Introduction Newsletter: No. 16, October 1966