Cita APA (7th ed.)
Deffeyes, K. S. (2009). Hubbert's peak: The impending world oil shortage ([New ed.].). Princeton University Press.
Cita Chicago (17th ed.)
Deffeyes, Kenneth S. Hubbert's Peak: The Impending World Oil Shortage. [New ed.]. Princeton, N.J.: Princeton University Press, 2009.
Cita MLA (9th ed.)
Deffeyes, Kenneth S. Hubbert's Peak: The Impending World Oil Shortage. [New ed.]. Princeton University Press, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.