Columbia subject headings:
Extortion--Michigan--Detroit.
International Brotherhood of Teamsters, Chauffeurs, Warehousemen and Helpers of America. Detroit. Local 985.
Jukeboxes.
Racketeering--Michigan--Detroit.
Vending machines.
Harvard subject headings:
Extortion--Michigan--Detroit.
International Brotherhood of Teamsters, Chauffeurs, Warehousemen and Helpers of America. Detroit. Local 985.
Jukeboxes
Vending machines.
Princeton subject headings: