| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Goode's Atlas with Tourism: The Business of Travel | 978-0-13-612097-1 (0-13-612097-0) | 2009 | Roy A. Cook D.B.A. · Joseph J. Marqua |
| Guide to Business Etiquette | 978-0-13-144917-6 (0-13-144917-6) | 2004 | Roy A. Cook D.B.A. · Gwen O. Cook · Mary M. Munter |
| Tourism: The Business of Travel | 978-0-13-714729-8 (0-13-714729-5) | 2009 | Roy A. Cook D.B.A. · Joseph J. Marqua |