Columbia subject headings:
Automobile dealers--United States.
Automobile repair shops--United States.
Competition--United States.
Consumer protection--United States.
Harvard subject headings:
Automobile dealers--United States
Automobile repair shops--United States.
Competition--United States
Consumer protection--United States
Princeton subject headings:
Automobile dealers--United States.
Automobile repair shops--United States.
Competition--United States.
Consumer protection--United States.