Columbia subject headings:
Transportation--United States.
United States. Presidential Advisory Committee on Transport Policy and Organization. Revision of Federal transportation policy; a report to the President.
Harvard subject headings:
Transportation--United States
United States. Presidential Advisory Committee on Transport Policy and Organization. Revision of federal transportation policy.
Princeton subject headings:
Transportation--United States.
United States. Presidential Advisory Committee on Transport Policy and Organization. Revision of Federal transportation policy; a report to the President.