APA (7. basım) Alıntı

Crews, F. C. (1994). Speaking effectively: Developing speaking skills for business English. Cambridge University Press.

Chicago Style (17. basım) Atıf

Crews, Frederick C. Speaking Effectively: Developing Speaking Skills for Business English. Cambridge: Cambridge University Press, 1994.

MLA (8th ed.) Atıf

Crews, Frederick C. Speaking Effectively: Developing Speaking Skills for Business English. Cambridge University Press, 1994.