APA (7 ম সংস্করণ) উদ্ধৃতি

Comfort, J. (1984). Speaking effectively: Developing speaking skills for business English. Cambridge University Press.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Comfort, Jeremy. Speaking Effectively: Developing Speaking Skills for Business English. Cambridge: Cambridge University Press, 1984.

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

Comfort, Jeremy. Speaking Effectively: Developing Speaking Skills for Business English. Cambridge University Press, 1984.