| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Annotated bibliography on health and tourism issues | 978-92-75-12083-5 (92-75-12083-8) | 1992 |
| Implications of the Un/Wto of Tourism Definitions Definitions for the U.S. Tourism Statistical System | 978-92-844-0126-0 (92-844-0126-7) | 1995 |
C.F. · D.C. · D.F. · D. Frechtling · Douglas C.