Mary Spratt. (2001). First cetificate direct - student's book. Cambridge, UK: Cambridge Univ. Press.
シカゴスタイル引用形Mary Spratt. First Cetificate Direct - Student's Book. Cambridge, UK: Cambridge Univ. Press, 2001.
MLA引用形式Mary Spratt. First Cetificate Direct - Student's Book. Cambridge, UK: Cambridge Univ. Press, 2001.
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