Columbia subject headings:
Industrial organization--United States--Congresses.
Trucking--Management--Congresses.
Trucking--United States--Management--Congresses.
Harvard subject headings:
Industrial organization--United States--Congresses.
Trucking--Management--Congresses.
Trucking--United States--Management--Congresses.
Princeton subject headings:
Freight and freightage--United States--Congresses.
Industrial management--United States--Congresses.
Transportation, Automotive--United States--Congresses.
Trucking--United States--Congresses.