APA (7th ed.) Citation

Booth, K., & Smith, S. (1995). International relations theory today. Pennsylvania State University Press.

Chicago Style (17th ed.) Citation

Booth, Ken, and Steve Smith. International Relations Theory Today. University Park, Pa.: Pennsylvania State University Press, 1995.

MLA (9th ed.) Citation

Booth, Ken, and Steve Smith. International Relations Theory Today. Pennsylvania State University Press, 1995.

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