D,. H.. · D. Hartmann · Dennis L. Hartmann · Dennis Samuel Hartmann
| title | media type | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|---|
| Cisco Self-Study: Building Cisco Metro Optical Networks | Hardcover | 978-1-58705-070-1 | 2003 | Dave Warren |
| Cisco Self-Study: Building Cisco Metro Optical Networks | Paperback | 978-1-58705-798-4 | 2003 | " |
| Implementing Cisco Unified Communications Manager, Part 1 | Hardcover | 978-1-58705-483-9 | 2008 | |
| Implementing Cisco Unified Communications Manager, Part 1 (CIPT1) Foundation Learning Guide: (CCNP Voice CIPT1 642-447) | " | 978-1-58720-418-0 | 2011 | Joshua Samuel Finke |