Campbell, K. M., & Steinberg, J. B. (2009). Difficult transitions: Foreign policy troubles at the outset of presidential power. Brookings Institution Press.
Trích dẫn kiểu ChicagoCampbell, Kurt M., và James B. Steinberg. Difficult Transitions: Foreign Policy Troubles At the Outset of Presidential Power. Brookings Institution Press, 2009.
MLA CitationCampbell, Kurt M., và James B. Steinberg. Difficult Transitions: Foreign Policy Troubles At the Outset of Presidential Power. Brookings Institution Press, 2009.
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