Columbia subject headings:
Harvard subject headings:
Asia, Central--History.
China--History--Sui dynasty, 581-618.
China--History--Tang dynasty, 618-907.
Turkic peoples--History
Princeton subject headings:
China--History--Sui dynasty, 581-618.
China--History--Tang dynasty, 618-907.
Turkic peoples--Asia, Central--History--To 1500.