Crews, F. C. (1994). Speaking effectively: Developing speaking skills for business English. Cambridge University Press.
Style de citation Chicago (17e éd.)Crews, Frederick C. Speaking Effectively: Developing Speaking Skills for Business English. Cambridge: Cambridge University Press, 1994.
Style de citation MLA (8e éd.)Crews, Frederick C. Speaking Effectively: Developing Speaking Skills for Business English. Cambridge University Press, 1994.
Attention : ces citations peuvent ne pas être correctes à 100%.