Columbia subject headings:
Chinese language--Ancient Chinese, 600-1200.
Chinese language--Etymology.
Chinese language--History.
Chinese language--To 600.
Harvard subject headings:
Chinese language--Ancient Chinese, 600-1200.
Chinese language--Etymology.
Chinese language--History.
Chinese language--To 600.
Princeton subject headings:
Chinese language--Ancient Chinese, 600-1200.
Chinese language--Etymology.
Chinese language--History.
Chinese language--To 600.