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Sách

• Todd, Emmanuel (200X). After the Empire — The Breakdown of the American Order. 
• Kennedy, Paul (1988). The Rise and Fall of the Great Powers. ISBN 0-679-72019-7. 
• Belt, Don (2004). “Europe's Big Gamble”. National Geographic. tr. 54–65. 
• Brzezinski, Zbigniew (1997). The Grand Chessboard: American Primacy and Its Geostrategic Imperatives. New York: Basic Books. ISBN 0-465-02726-1. 
• McCormick, John (2006). The European Superpower. Palgrave Macmillan.