APA引文
Hart, G. (2004). The fourth power: A grand strategy for the United States in the twenty-first century. Oxford University Press.
Chicago Style (17th ed.) Citation
Hart, Gary. The Fourth Power: A Grand Strategy for the United States in the Twenty-first Century. New York: Oxford University Press, 2004.
MLA引文
Hart, Gary. The Fourth Power: A Grand Strategy for the United States in the Twenty-first Century. Oxford University Press, 2004.
警告：這些引文格式不一定是100％准確.