Hartshorn, J. E. (1962). Politics and world oil economics: An account of the international oil industry in its political environment. Praeger.
Chicago-Zitierstil (17. Ausg.)Hartshorn, Jack Ernest. Politics and World Oil Economics: An Account of the International Oil Industry in Its Political Environment. New York: Praeger, 1962.
MLA-Zitierstil (9. Ausg.)Hartshorn, Jack Ernest. Politics and World Oil Economics: An Account of the International Oil Industry in Its Political Environment. Praeger, 1962.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.