Hashemi, L. (2011). Objective PET: Workbook with answers. Cambridge, UK: Cambridge University Press.
シカゴスタイル引用形Hashemi, Louise. Objective PET: Workbook With Answers. Cambridge, UK: Cambridge University Press, 2011.
MLA引用形式Hashemi, Louise. Objective PET: Workbook With Answers. Cambridge, UK: Cambridge University Press, 2011.
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