Columbia subject headings:
Ethnology--Japan--Congresses.
Japanese language--Etymology--Congresses.
Japanese--Origin--Congresses.
Harvard subject headings:
Ethnology--Japan--Congresses.
Japanese language--Etymology--Congresses.
Japanese--Origin--Congresses.
Princeton subject headings:
Ethnology--Japan--Congresses.
Japanese language--Etymology--Congresses.
Japanese language--History--Congresses.