共 50 条
- [1] Amrik Singh, 2000, Tourism Recreation Research, V25, P49
- [2] [Anonymous], 1992, ENV ISSUES 1990S
- [3] [Anonymous], 1999, SUSTAINABLE TOURISM
- [4] [Anonymous], 1998, SUSTAINABLE TOURISM
- [5] [Anonymous], 1991, Tourism Management, DOI DOI 10.1016/0261-5177(91)90062-X
- [6] [Anonymous], 1885, TIMES, P13
- [7] BERLITZ WD, 1996, COMPLETE GUIDE CRUIS
- [8] *BLUEW NETW, 2000, PET US ENV PROT AG
- [9] *BRIT AIRW, 1994, 4194 CEED BRIT AIRW
- [10] Burns P., 1995, TOURISM NEW PERSPECT