APA (7th ed.) Citation

Herd, G. P., & Kriendler, J. (2013). Understanding NATO in the 21st century: Alliance strategies, security and global governance. Routledge.

Chicago Style (17th ed.) Citation

Herd, Graeme P., and John Kriendler. Understanding NATO in the 21st Century: Alliance Strategies, Security and Global Governance. New York: Routledge, 2013.

MLA (9th ed.) Citation

Herd, Graeme P., and John Kriendler. Understanding NATO in the 21st Century: Alliance Strategies, Security and Global Governance. Routledge, 2013.