Hobson, A. (2001). The Oxford dictionary of difficult words. Oxford University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHobson, Archie. The Oxford Dictionary of Difficult Words. New York: Oxford University Press, 2001.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHobson, Archie. The Oxford Dictionary of Difficult Words. Oxford University Press, 2001.
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