Hersman, R. K. C. (2000). Friends and foes: How Congress and the president really make foreign policy. Brookings Institution Press.
Lua i Stíl Chicago (17ú heag.)Hersman, Rebecca K. C. Friends and Foes: How Congress and the President Really Make Foreign Policy. Washington, D.C.: Brookings Institution Press, 2000.
Lua MLA (9ú heag.)Hersman, Rebecca K. C. Friends and Foes: How Congress and the President Really Make Foreign Policy. Brookings Institution Press, 2000.
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