Barber, C. L. (2000). The English language: A historical introduction. Cambridge University Press. https://doi.org/10.1017/CBO9781139106894
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBarber, Charles Laurence. The English Language: A Historical Introduction. Cambridge: Cambridge University Press, 2000. https://doi.org/10.1017/CBO9781139106894.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBarber, Charles Laurence. The English Language: A Historical Introduction. Cambridge University Press, 2000. https://doi.org/10.1017/CBO9781139106894.
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