Schofield, J., & Osborn, A. (2011). English for Business: Speaking. London: HarperCollins.
シカゴスタイル引用形Schofield, James, , Anna Osborn. English for Business: Speaking. London: HarperCollins, 2011.
MLA引用形式Schofield, James, , Anna Osborn. English for Business: Speaking. London: HarperCollins, 2011.
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