Cita APA (7a ed.)
Yergin, D., & Rosenfield, J. Oil and Gas Strategies for the 1990s. Cambridge Energy Research Associates.
Cita estilo Chicago (17a ed.)
Yergin, Daniel, y James Rosenfield. Oil and Gas Strategies for the 1990s. Cambridge, EUA: Cambridge Energy Research Associates.
Cita MLA (9a ed.)
Yergin, Daniel, y James Rosenfield. Oil and Gas Strategies for the 1990s. Cambridge Energy Research Associates.
Precaución: Estas citas no son 100% exactas.