Littlejohn, A. (2000). Cambridge English worldwide: Student's book. Cambridge, UK: Cambridge University Press.
シカゴスタイル引用形Littlejohn, Andrew. Cambridge English Worldwide: Student's Book. Cambridge, UK: Cambridge University Press, 2000.
MLA引用形式Littlejohn, Andrew. Cambridge English Worldwide: Student's Book. Cambridge, UK: Cambridge University Press, 2000.
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