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1Published 1981“...Latin America Description and travel Congresses....”
Conference Proceeding Book -
2Published 1989“...North America Description and travel Guidebooks....”
Conference Proceeding Book -
3Published 1983“...Latin America Description and travel Congresses....”
Conference Proceeding Book -
4Published 1984“...Latin America Description and travel Congresses....”
Conference Proceeding -
5Published 1976“...Latin America Description and travel Congresses....”
Conference Proceeding Book -
6
Conference Proceeding Journal