Materiála du geavahussii : Koguryo, the language of Japan's continental relatives [electronic resource] : an introduction to the historical-comparative study of the Japanese Koguryoic languages with a preliminary description of Archaic northeastern Middle Chinese / by Christopher I. Beckwith.

Bajilčálus : Koguryo, the language of Japan's continental relatives [electronic resource] : an introduction to the historical-comparative study of the Japanese Koguryoic languages with a preliminary description of Archaic northeastern Middle Chinese / by Christopher I. Beckwith.

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