APA (7th ed.) Citation

Schmitt, C., Seitzer, J., & Kennedy, E. (2008). Constitutional theory. Duke University Press.

Chicago Style (17th ed.) Citation

Schmitt, Carl, Jeffrey Seitzer, and Ellen Kennedy. Constitutional Theory. Durham ; London: Duke University Press, 2008.

MLA (9th ed.) Citation

Schmitt, Carl, et al. Constitutional Theory. Duke University Press, 2008.