P S · P. V. · Peter Southwick · V. S.
| title | media type | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|---|
| Isdn: Concepts, Facilities, and Services | Paperback | 978-0-07-034437-2 (0-07-034437-X) | 1998 | Gary C. Kessler |
| Isdn: Concepts, Facilities, and Services | Hardcover | 978-0-07-034249-1 (0-07-034249-0) | 1996 | " |