O'Connell, S. (2000). Cambridge first certificate: Listening & Speaking. Cambridge: Cambridge University Press.
シカゴスタイル引用形O'Connell, Sue. Cambridge First Certificate: Listening & Speaking. Cambridge: Cambridge University Press, 2000.
MLA引用形式O'Connell, Sue. Cambridge First Certificate: Listening & Speaking. Cambridge: Cambridge University Press, 2000.
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