Crews, F. C. (1994). Speaking effectively: Developing speaking skills for business English. Cambridge University Press.
Chicago Style (17th ed.) CitationCrews, Frederick C. Speaking Effectively: Developing Speaking Skills for Business English. Cambridge: Cambridge University Press, 1994.
MLA引文Crews, Frederick C. Speaking Effectively: Developing Speaking Skills for Business English. Cambridge University Press, 1994.
警告:這些引文格式不一定是100%准確.