Clark, J. G. (1990). The political economy of world energy: A twentieth-century perspective. New York: Harvester Wheatsheaf.
Stile di citazione ChicagoClark, John G. The Political Economy of World Energy: A Twentieth-century Perspective. New York: Harvester Wheatsheaf, 1990.
Citazione MLAClark, John G. The Political Economy of World Energy: A Twentieth-century Perspective. New York: Harvester Wheatsheaf, 1990.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.