Columbia subject headings:
Harvard subject headings:
China--History--220-589.
China--History--Sui dynasty, 581-618.
China--History--Tang dynasty, 618-907.
Princeton subject headings:
China--History--220-589--Collected works.
China--History--Sui dynasty, 581-618--Collected works.
China--History--Tang dynasty, 618-907--Collected works.