Cambridge ESOL. (2009). Examination papers from University of Cambridge ESOL Examinations: English for speakers of other languages: Cambridge ESOL.
Chicagoスタイル(17版)引用形式Cambridge ESOL. Examination Papers from University of Cambridge ESOL Examinations: English for Speakers of Other Languages: Cambridge ESOL. Cambridge University Press, 2009.
MLA(9版)引用形式Cambridge ESOL. Examination Papers from University of Cambridge ESOL Examinations: English for Speakers of Other Languages: Cambridge ESOL. 2009.
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