| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Travel Planning Online for Dummies | 978-0-7645-2867-5 (0-7645-2867-X) | 2001 | Julian Smith |
| Travel Planning Online For Dummies | 978-0-7645-0672-7 (0-7645-0672-2) | 2000 | " |
| Travel Planning Online For Dummies? | 978-0-7645-0438-9 (0-7645-0438-X) | 1998 | |