Ikenberry, G. J. (1988). Reasons of State: Oil Politics and the Capacities of American Government. Cornell University Press.
Citace podle Chicago (17th ed.)Ikenberry, G. John. Reasons of State: Oil Politics and the Capacities of American Government. London: Cornell University Press, 1988.
Citace podle MLA (9th ed.)Ikenberry, G. John. Reasons of State: Oil Politics and the Capacities of American Government. Cornell University Press, 1988.
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