Duncan, R. (1992). Agricultural Futures and Options. ELSEVIER.
Chicagoスタイル(17版)引用形式Duncan, Richard. Agricultural Futures and Options. ELSEVIER, 1992.
MLA(8版)引用形式Duncan, Richard. Agricultural Futures and Options. ELSEVIER, 1992.
警告: この引用は必ずしも正確ではありません.