Mitchell, E. J. (1974). Vertical integration in the oil industry. Washington: The AEI National Energy project.
Čikaški stil citiranjaMitchell, Edward J. Vertical Integration in the Oil Industry. Washington: The AEI National Energy project, 1974.
MLA način citiranjaMitchell, Edward J. Vertical Integration in the Oil Industry. Washington: The AEI National Energy project, 1974.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.