Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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