APA (7e ed.) Bronvermelding

Harper, D. V. (1959). Economic regulation of the motor trucking industry by the States. University of Illinois Press.

Chicago (17e ed.) Bronvermelding

Harper, Donald Victor. Economic Regulation of the Motor Trucking Industry by the States. Urbana, Ill: University of Illinois Press, 1959.

MLA (9e ed.) Bronvermelding

Harper, Donald Victor. Economic Regulation of the Motor Trucking Industry by the States. University of Illinois Press, 1959.