Hashemi, L. (2010). Objective PET: Student's book with answers. Cambridge: Cambridge University Press.
シカゴスタイル引用形Hashemi, Louise. Objective PET: Student's Book With Answers. Cambridge: Cambridge University Press, 2010.
MLA引用形式Hashemi, Louise. Objective PET: Student's Book With Answers. Cambridge: Cambridge University Press, 2010.
警告: この引用は必ずしも正確ではありません.