| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Cisco IOS Fundamentals | 978-1-58720-143-1 (1-58720-143-7) | 2006 |
| Cisco Ios in a Nutshell | 978-0-596-00869-7 (0-596-00869-4) | 2005 |
| Cisco IOS in a Nutshell: A Desktop Quick Reference for IOS on IP Networks | 978-1-56592-942-5 (1-56592-942-X) | 2001 |