Forster, G., & Leager, M. C. Elements of agricultural economic. Prentice hall INC.
シカゴスタイル引用形Forster, G.W, , Marc C. Leager. Elements of Agricultural Economic. New York: Prentice hall INC.
MLA引用形式Forster, G.W, , Marc C. Leager. Elements of Agricultural Economic. Prentice hall INC.
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