Columbia subject headings:
Automobile industry and trade--Information services--Access control--United States.
Automobile repair shops--Information services--Access control--United States.
Automobiles--Maintenance and repair--Information services--Access control--United States.
Automotive computers--Access control--United States.
Harvard subject headings:
Automobile industry and trade--Information services--Access control--United States.
Automobile repair shops--Information services--Access control--United States.
Automobiles--Maintenance and repair--Information services--Access control--United States.
Automotive computers--Access control--United States
Witnesses.
Princeton subject headings:
Automobile industry and trade--Information services--Access control--United States.
Automobile repair shops--Information services--Access control--United States.
Automobiles--Maintenance and repair--Information services--Access control--United States.
Automotive computers--Access control--United States.