APA (7e ed.) Bronvermelding

Comfort, J. (1984). Speaking effectively: Developing speaking skills for business English. Cambridge University Press.

Chicago (17e ed.) Bronvermelding

Comfort, Jeremy. Speaking Effectively: Developing Speaking Skills for Business English. Cambridge: Cambridge University Press, 1984.

MLA (8e ed.) Bronvermelding

Comfort, Jeremy. Speaking Effectively: Developing Speaking Skills for Business English. Cambridge University Press, 1984.

Let op: Deze citaties zijn niet altijd 100% accuraat.