Food and Agriculture Organization of the United Nations. World grain trade statistics: Exports by source and destination. s.n.
Lua i Stíl Chicago (17ú heag.)Food and Agriculture Organization of the United Nations. World Grain Trade Statistics: Exports by Source and Destination. [Rome]: s.n.
Lua MLA (9ú heag.)Food and Agriculture Organization of the United Nations. World Grain Trade Statistics: Exports by Source and Destination. s.n.
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