APA (7e ed.) Bronvermelding
Comfort, J. a. (1994). Speaking effectively: Developing speaking skills for business english. CUP.
Chicago (17e ed.) Bronvermelding
Comfort, Jeremy...[et al]. Speaking Effectively: Developing Speaking Skills for Business English. Cambridge: CUP, 1994.
MLA (9e ed.) Bronvermelding
Comfort, Jeremy...[et al]. Speaking Effectively: Developing Speaking Skills for Business English. CUP, 1994.
Let op: Deze citaties zijn niet altijd 100% accuraat.