APA (7th ed.) Citation

Clark, J. G. (1991). The political economy of world energy: A twentieth-century perspective. University of North Carolina Press.

Chicago Style (17th ed.) Citation

Clark, John Garretson. The Political Economy of World Energy: A Twentieth-century Perspective. Chapel Hill: University of North Carolina Press, 1991.

MLA (9th ed.) Citation

Clark, John Garretson. The Political Economy of World Energy: A Twentieth-century Perspective. University of North Carolina Press, 1991.