Tillitt, B., & Bruder, M. N. (1985). Speaking naturally: Communication skills in American English. Cambridge University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रTillitt, Bruce, और Mary Newton Bruder. Speaking Naturally: Communication Skills in American English. Cambridge [Cambridgeshire] ; New York: Cambridge University Press, 1985.
एमएलए (8वां संस्करण) प्रशस्ति पत्रTillitt, Bruce, और Mary Newton Bruder. Speaking Naturally: Communication Skills in American English. Cambridge University Press, 1985.
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