APA (7th ed.) Zitazioa
Preston, T. (2001). The President and his inner circle: Leadership style and the advisory process in foreign affairs. Columbia University Press.
Chicago Style (17th ed.) Zitazioa
Preston, Thomas. The President and His Inner Circle: Leadership Style and the Advisory Process in Foreign Affairs. New York: Columbia University Press, 2001.
MLA (9th ed.) Zitazioa
Preston, Thomas. The President and His Inner Circle: Leadership Style and the Advisory Process in Foreign Affairs. Columbia University Press, 2001.
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