R A.J Roberts. (1991). FAO agricultural servicies bulletin; N86: Strategies for crop insurance planning. Rome: FAO.
シカゴスタイル引用形R A.J Roberts. FAO Agricultural Servicies Bulletin; N86: Strategies for Crop Insurance Planning. Rome: FAO, 1991.
MLA引用形式R A.J Roberts. FAO Agricultural Servicies Bulletin; N86: Strategies for Crop Insurance Planning. Rome: FAO, 1991.
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