APA引文
Comfort, J. a. (1994). Speaking effectively: Developing speaking skills for business english. CUP.
芝加哥风格引文
Comfort, Jeremy...[et al]. Speaking Effectively: Developing Speaking Skills for Business English. Cambridge: CUP, 1994.
MLA引文
Comfort, Jeremy...[et al]. Speaking Effectively: Developing Speaking Skills for Business English. CUP, 1994.
警告:这些引文格式不一定是100%准确.