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Dyfyniad Arddull ChicagoWorld Trade, Food and Agriculture: A Look at the World Trade Organization, Genetically Modified Organisms and the Issue of Food Security. Washington, D. C.: Heinrich Boll Foundation, 2001.
Dyfyniad MLAWorld Trade, Food and Agriculture: A Look at the World Trade Organization, Genetically Modified Organisms and the Issue of Food Security. Heinrich Boll Foundation, 2001.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.