| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Understanding NATO in the 21st Century | 978-1-138-83188-9 (1-138-83188-3) | 2014 | Graeme P. Herd |
| Understanding NATO in the 21st Century: Alliance Strategies, Security and Global Governance | 978-0-415-43633-5 (0-415-43633-8) | 2012 | " |