Comfort, J. (1984). Speaking effectively: Developing speaking skills for business English. Cambridge University Press.
Chicago-Zitierstil (17. Ausg.)Comfort, Jeremy. Speaking Effectively: Developing Speaking Skills for Business English. Cambridge: Cambridge University Press, 1984.
MLA-Zitierstil (8. Ausg.)Comfort, Jeremy. Speaking Effectively: Developing Speaking Skills for Business English. Cambridge University Press, 1984.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.