(1997). Tobacco: World markets and trade. l997: Leaf exports for selected countries. USA: United States Department of agriculture.
シカゴスタイル引用形Tobacco: World Markets and Trade. L997: Leaf Exports for Selected Countries. USA: United States Department of agriculture, 1997.
MLA引用形式Tobacco: World Markets and Trade. L997: Leaf Exports for Selected Countries. USA: United States Department of agriculture, 1997.
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