Doff, A., & Jones, C. (2000). Languaje in use. Cambridge University Press.
Chicagoスタイル(17版)引用形式Doff, Adrian, , Christopher Jones. Languaje in Use. United Kingdon: Cambridge University Press, 2000.
MLA(9版)引用形式Doff, Adrian, , Christopher Jones. Languaje in Use. Cambridge University Press, 2000.
警告: この引用は必ずしも正確ではありません.