Columbia subject headings:
Automobile industry and trade--History.
Automobile industry and trade--United States--History.
Automobile industry and trade--United States.
Automobile industry and trade.
Harvard subject headings:
Automobile industry and trade--History
Automobile industry and trade--United States
Automobile industry and trade--United States--History
Automobile industry and trade.
Princeton subject headings:
Automobile industry and trade--History.
Automobile industry and trade--United States--History.
Automobile industry and trade--United States.
Automobile industry and trade.