Cita APA (7th ed.)

Roberts, P. 1. A. 2. (2004). The end of oil: On the edge of a perilous new world. Houghton Mifflin.

Cita Chicago (17th ed.)

Roberts, Paul 1961 August 2-. The End of Oil: On the Edge of a Perilous New World. Boston: Houghton Mifflin, 2004.

Cita MLA (9th ed.)

Roberts, Paul 1961 August 2-. The End of Oil: On the Edge of a Perilous New World. Houghton Mifflin, 2004.

Atenció: Aquestes cites poden no estar 100% correctes.