Tillitt, B., & Bruder, M. N. (1985). Speaking naturally: Communication skills in American English. Cambridge University Press.
芝加哥风格引文Tillitt, Bruce, 与 Mary Newton Bruder. Speaking Naturally: Communication Skills in American English. Cambridge [Cambridgeshire] ; New York: Cambridge University Press, 1985.
MLA引文Tillitt, Bruce, 与 Mary Newton Bruder. Speaking Naturally: Communication Skills in American English. Cambridge University Press, 1985.
警告：这些引文格式不一定是100％准确.