OAS (Organization of American States)

Comparative study of ecotourism policy in the Americas - 1998

Compendium of recent studies on tourism development

The financing requirements of nature and heritage tourism in the Caribbean

Cuenca del Rio de La Plata : estudio para su planificacion y desarrollo. Republica Argentina - Republica de Bolivia I- Alta cuenca del Rio Bermejo : estudio de los recursos hídricos

Management and development plan - Caura recreation park : with special emphasis on land-use in the Tacarigua Valley

The development of border regions in Central America

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