APA (7th ed.) Zitazioa
Keller, M. (2010). The unbearable heaviness of governing: The Obama administration in historical perspective. Hoover Institution Press.
Chicago Style (17th ed.) Zitazioa
Keller, Morton. The Unbearable Heaviness of Governing: The Obama Administration in Historical Perspective. Stanford, Calif.: Hoover Institution Press, 2010.
MLA (9th ed.) Zitazioa
Keller, Morton. The Unbearable Heaviness of Governing: The Obama Administration in Historical Perspective. Hoover Institution Press, 2010.
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