APA (7th ed.) Citation

Kennedy, P. M. (1993). Preparing for the twenty-first century / Paul Kennedy. HarperCollins.

Chicago Style (17th ed.) Citation

Kennedy, Paul M. Preparing for the Twenty-first Century / Paul Kennedy. London: HarperCollins, 1993.

MLA (9th ed.) Citation

Kennedy, Paul M. Preparing for the Twenty-first Century / Paul Kennedy. HarperCollins, 1993.

Warning: These citations may not always be 100% accurate.