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Dyfyniad Arddull ChicagoLiu, Pascal. Production and Export of Organic Fruit and Vegetables in Asia: Proceedings of the Seminar Held in Bangkok, Thailand, 3-5 November 2003. Rome, Italy: FAO, 2004.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.