FAO. Human and draught animal power in crop production: Proceedings of the harare workshop, Zimbabwe 18-22 Januari 1993. Rome.
Chicagoスタイル(17版)引用形式FAO. Human and Draught Animal Power in Crop Production: Proceedings of the Harare Workshop, Zimbabwe 18-22 Januari 1993. Rome.
MLA(8版)引用形式FAO. Human and Draught Animal Power in Crop Production: Proceedings of the Harare Workshop, Zimbabwe 18-22 Januari 1993. Rome.
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