| americansightseeing.org | American Sightseeing International |
| arccorp.com | Airlines Reporting Corporation |
| aaco.org | Arab Air Carriers Organization |
| airports.org | Airports Council International |
| icao.int | International Civil Aviation Organization (ICAO) |
| adventuretravel.biz | Adventure Travel Trade Association |
| knightridder.com | Knight Ridder Corporate Web Site |
| buses.org | American Bus Association |
| bctourismindustryconference.ca | Tourism Industry Conference 2002 in British Columbia |
| atta.co.uk | African Travel & Tourism Association |
| airlines.org | www.airlines.org/ |
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