Não informado. (1976). FAO trade yearbook. Food and Agriculture Organization of the United Nations.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. FAO Trade Yearbook. Rome: Food and Agriculture Organization of the United Nations, 1976.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. FAO Trade Yearbook. Food and Agriculture Organization of the United Nations, 1976.
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