Harper, D. V. (1959). Economic regulation of the motor trucking industry by the States. University of Illinois Press.
芝加哥风格引文Harper, Donald Victor. Economic Regulation of the Motor Trucking Industry by the States. Urbana, Ill: University of Illinois Press, 1959.
MLA引文Harper, Donald Victor. Economic Regulation of the Motor Trucking Industry by the States. University of Illinois Press, 1959.
警告：这些引文格式不一定是100％准确.