APA (7th ed.) Citation

Spiegel, S. L. (2009). World politics in a new era (4th ed.). Oxford University Press.

Chicago Style (17th ed.) Citation

Spiegel, Steven L. World Politics in a New Era. 4th ed. Oxford ; New York: Oxford University Press, 2009.

MLA (9th ed.) Citation

Spiegel, Steven L. World Politics in a New Era. 4th ed. Oxford University Press, 2009.