APA (7 ম সংস্করণ) উদ্ধৃতি

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

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

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

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

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