Cita APA (7a ed.)
Tordo, S., Tracy, B. S., & Arfaa, N. (2011). National oil companies and value creation. World Bank.
Cita Chicago Style (17a ed.)
Tordo, Silvana, Brandon S. Tracy, y Noora Arfaa. National Oil Companies and Value Creation. Washington, D.C.: World Bank, 2011.
Cita MLA (9a ed.)
Tordo, Silvana, et al. National Oil Companies and Value Creation. World Bank, 2011.
Precaución: Estas citas no son 100% exactas.