Wong, L. W. (2017). Charles Gutzlaff (1803-1851) and the first opium war. Journal of English Studies and Comparative Literature.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWong, Lawrence Wang-chi. "Charles Gutzlaff (1803-1851) and the First Opium War." Journal of English Studies and Comparative Literature 2017.
एमएलए (9वां संस्करण) प्रशस्ति पत्रWong, Lawrence Wang-chi. "Charles Gutzlaff (1803-1851) and the First Opium War." Journal of English Studies and Comparative Literature, 2017.
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