APA Edition Citation

Comfort, J. e. a. (2012). Speaking effectively: Developing speaking skills for business english.

Chicago Edition Citation

Comfort, Jeremy et al. Speaking Effectively: Developing Speaking Skills for Business English. Cambridge University Press, Cambridge, 2012.

MLA Edition Citation

Comfort, Jeremy et al. Speaking Effectively: Developing Speaking Skills for Business English. 2012.

Warning: These citations may not always be 100% accurate.