Harper, D. V. (1959). Economic regulation of the motor trucking industry by the States. University of Illinois Press.
Cita Chicago (17th ed.)Harper, Donald Victor. Economic Regulation of the Motor Trucking Industry by the States. Urbana, Ill: University of Illinois Press, 1959.
Cita MLA (9th ed.)Harper, Donald Victor. Economic Regulation of the Motor Trucking Industry by the States. University of Illinois Press, 1959.
Atenció: Aquestes cites poden no estar 100% correctes.