Columbia subject headings:
Japanese language--Middle Japanese, 1185-1600.
Japanese language--Pronunciation--History.
Japanese language--Spoken Japanese--History.
Japanese language--Writing--History.
Harvard subject headings:
Japanese language--Middle Japanese, 1185-1600
Japanese language--Pronunciation--History.
Japanese language--Spoken Japanese--History.
Japanese language--Writing--History
Princeton subject headings:
Japanese language--Middle Japanese, 1185-1600.
Japanese language--Pronunciation--History.
Japanese language--Spoken Japanese--History.
Japanese language--Writing--History.