APA (7 वां संस्करण) प्रशस्ति पत्र
Beckwith, C. I. (2007). Koguryo, the language of Japan's continental relatives: An introduction to the historical-comparative study of the Japanese-Koguryoic languages with a preliminary description of Archaic northeastern Middle Chinese (2nd ed.). Brill.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Beckwith, Christopher I. Koguryo, the Language of Japan's Continental Relatives: An Introduction to the Historical-comparative Study of the Japanese-Koguryoic Languages with a Preliminary Description of Archaic Northeastern Middle Chinese. 2nd ed. Leiden ; Boston: Brill, 2007.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Beckwith, Christopher I. Koguryo, the Language of Japan's Continental Relatives: An Introduction to the Historical-comparative Study of the Japanese-Koguryoic Languages with a Preliminary Description of Archaic Northeastern Middle Chinese. 2nd ed. Brill, 2007.
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