Crane, G. T., & Abla, A. (1997). Theroetical evolution of international political economy (2nd ed.). Oxford university press.
Dyfyniad Arddull ChicagoCrane, George T., and Amawi Abla. Theroetical Evolution of International Political Economy. 2nd ed. New York: Oxford university press, 1997.
Dyfyniad MLACrane, George T., and Amawi Abla. Theroetical Evolution of International Political Economy. 2nd ed. Oxford university press, 1997.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.