FAO. (1991). FAO economic and social development series N.49: Commodity review and outlook 1990 - 1991. Rome: FAO.
Παραπομπή Chicago StyleFAO. FAO Economic and Social Development Series N.49: Commodity Review and Outlook 1990 - 1991. Rome: FAO, 1991.
Παραπομπή MLAFAO. FAO Economic and Social Development Series N.49: Commodity Review and Outlook 1990 - 1991. Rome: FAO, 1991.
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