Cita APA

Comfort, J. (1999). Speaking effectively: Developing speaking skills for business english. (1. ed., 1. reimpr.). Cambridge, U.K.: Cambridge University Press.

Citación estilo Chicago

Comfort, Jeremy. Speaking Effectively: Developing Speaking Skills for Business English. 1. ed., 1. reimpr. Cambridge, U.K.: Cambridge University Press, 1999.

Cita MLA

Comfort, Jeremy. Speaking Effectively: Developing Speaking Skills for Business English. 1. ed., 1. reimpr. Cambridge, U.K.: Cambridge University Press, 1999.