Norrlof, C. (2010). America's global advantage: US hegemony and international cooperation. Cambridge University Press.
Dyfyniad Arddull ChicagoNorrlof, Carla. America's Global Advantage: US Hegemony and International Cooperation. New York: Cambridge University Press, 2010.
Dyfyniad MLANorrlof, Carla. America's Global Advantage: US Hegemony and International Cooperation. Cambridge University Press, 2010.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.