APA-čujuhus (7. p.)
Ikenberry, G. J. (1988). Reasons of State: Oil Politics and the Capacities of American Government. Cornell University Press.
Chicago-čujuhus (17. p.)
Ikenberry, G. John. Reasons of State: Oil Politics and the Capacities of American Government. London: Cornell University Press, 1988.
MLA-čujuhus (9. p.)
Ikenberry, G. John. Reasons of State: Oil Politics and the Capacities of American Government. Cornell University Press, 1988.
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