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Dyfyniad Arddull ChicagoP L Scandizzo. FAO Economic and Social Development Paper N.84: Measures of Protection: Methodology, Economic Interpretation and Policy Relevance. Rome: FAO, 1989.
Dyfyniad MLAP L Scandizzo. FAO Economic and Social Development Paper N.84: Measures of Protection: Methodology, Economic Interpretation and Policy Relevance. Rome: FAO, 1989.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.