Quality tourism concept of a sustainable tourism development, harmonizing economical, social and ecological interests.
| Institution som forfatter: | |
|---|---|
| Format: | Bog |
| Sprog: | English |
| Udgivet: |
St. Gall (Suisse)
AIEST
1991.
|
| Serier: | Publication de l'AIEST
v. 33 |
| Fag: |