Cita APA

Bruce Tillitt. (1989). Speaking naturally communication skills in American English. Cambridge: Cambridge Univ.

Chicago Style Citation

Bruce Tillitt. Speaking Naturally Communication Skills in American English. Cambridge: Cambridge Univ, 1989.

Cita MLA

Bruce Tillitt. Speaking Naturally Communication Skills in American English. Cambridge: Cambridge Univ, 1989.

Atenció: Aquestes cites poden no estar 100% correctes.