Wallwork, A. (1997). Discussions A-Z Intermediate. Cambridge: Cambridge University Press.
シカゴスタイル引用形Wallwork, Adrian. Discussions A-Z Intermediate. Cambridge: Cambridge University Press, 1997.
MLA引用形式Wallwork, Adrian. Discussions A-Z Intermediate. Cambridge: Cambridge University Press, 1997.
警告: この引用は必ずしも正確ではありません.