Production of Vegetables in the Tropics and Sub-Tropics - Ministry of Agriculture, Forestry and Fisheries Tsukuba, Ibaraki, 305 Japan Tropical Agriculture Research Center 1989 - p.322.:pic.:ill.:map. - Tropical Agriculture Research Series: No 23 .

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Proceeding of the 23rd International Symposium on Tropical Agriculture Research tsu, Japan, September 20-22, 1989

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