| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Travel Career Development | 978-0-931202-72-8 (0-931202-72-8) | 2005 | Shelly M. Houser |
| Travel Career Development: Student Textbook | 978-0-931202-53-7 (0-931202-53-1) | 2002 | |
J. G. · P.G. · P. Gagnon · P.J. · Patricia J. · Patricia J. Gagnon and Shelly M. Houser