APA সাইটেশন

Tillitt, B., & Bruder, M. N. (1989). Speaking Naturally: Communication Skills in American English. Cambridge: Cambridge University.

শিকাগো স্টাইলে সাইটেশন

Tillitt, Bruce, এবং Mary Newton Bruder. Speaking Naturally: Communication Skills in American English. Cambridge: Cambridge University, 1989.

এমএলএ সাইটেশন

Tillitt, Bruce, এবং Mary Newton Bruder. Speaking Naturally: Communication Skills in American English. Cambridge: Cambridge University, 1989.