FAO. (1986). FAO agriculture series; N20: The state of food and agriculture. Rome: FAO.
Trích dẫn kiểu ChicagoFAO. FAO Agriculture Series; N20: The State of Food and Agriculture. Rome: FAO, 1986.
MLA CitationFAO. FAO Agriculture Series; N20: The State of Food and Agriculture. Rome: FAO, 1986.
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