Wallwork, A. (1997). Discussions A-Z Intermediate. Cambridge: Cambridge University Press.
Trích dẫn kiểu ChicagoWallwork, Adrian. Discussions A-Z Intermediate. Cambridge: Cambridge University Press, 1997.
MLA引文Wallwork, Adrian. Discussions A-Z Intermediate. Cambridge: Cambridge University Press, 1997.
警告：這些引文格式不一定是100％准確.