Tillitt, B., & Bruder, M. N. (1989). Speaking Naturally: Communication Skills in American English. Cambridge: Cambridge University.
Chicago-стиль цитированияTillitt, Bruce, và Mary Newton Bruder. Speaking Naturally: Communication Skills in American English. Cambridge: Cambridge University, 1989.
MLA-цитированиеTillitt, Bruce, và Mary Newton Bruder. Speaking Naturally: Communication Skills in American English. Cambridge: Cambridge University, 1989.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.