Harper, D. V. (1959). Economic regulation of the motor trucking industry by the States. University of Illinois Press.
Lua i Stíl Chicago (17ú heag.)Harper, Donald Victor. Economic Regulation of the Motor Trucking Industry by the States. Urbana, Ill: University of Illinois Press, 1959.
Lua MLA (9ú heag.)Harper, Donald Victor. Economic Regulation of the Motor Trucking Industry by the States. University of Illinois Press, 1959.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.