Columbia subject headings:
Harvard subject headings:
Chinatown (San Francisco, Calif.)--History.
Chinese--California--San Francisco.
Crime--California--San Francisco--History.
Crime--California--San Francisco.
San Francisco (Calif.)--History.
Tongs (Secret societies)
Tongs (Secret societies)--California--San Francisco--History.
Princeton subject headings:
Chinatown (San Francisco, Calif.)--History.
Crime--California--San Francisco--History.
San Francisco (Calif.)--History.
Tongs (Secret societies)--California--San Francisco--History.