Littlejohn, A. (1999). 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, 1999.
MLA引用形式Littlejohn, Andrew. Cambridge English Worldwide: Student's Book. Cambridge, UK: Cambridge University Press, 1999.
警告: この引用は必ずしも正確ではありません.