Cita APA

Comfort, J. (1994). Speaking effectively: Developing speaking skills for business English. Cambridge: Cambridge University Press.

Citación estilo Chicago

Comfort, Jeremy. Speaking Effectively: Developing Speaking Skills for Business English. Cambridge: Cambridge University Press, 1994.

Cita MLA

Comfort, Jeremy. Speaking Effectively: Developing Speaking Skills for Business English. Cambridge: Cambridge University Press, 1994.