Columbia subject headings:
Harvard subject headings:
Agricultural administration--China--History.
Agriculture--China--History
Land use, Rural--China--History.
Shang, Yang, -338 B.C. Shang jun shu.
Princeton subject headings:
Agricultural administration--China--History.
Agriculture--China--History.
Land use, Rural--China--History.
Shang, Yang, -338 B.C. Shang jun shu.