Cita APA (7th ed.)
ebrary, Inc, & Harris, K. T. (2009). Geopolitics of oil. Nova Science Publishers.
Cita Chicago (17th ed.)
ebrary, Inc, i Katherine T. Harris. Geopolitics of Oil. New York: Nova Science Publishers, 2009.
Cita MLA (9th ed.)
ebrary, Inc, i Katherine T. Harris. Geopolitics of Oil. Nova Science Publishers, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.