Agenda 21 for the travel & tourism industry towards environmentally sustainable development.

Dades bibliogràfiques
Autor corporatiu:	United Nations Conference on Environment and Development Rio de Janeiro, Brazil, World Travel & Tourism Council, World Tourism Organization, Earth Council
Format:	Llibre
Idioma:	English
Publicat:	[Brazil WTTC 1992].
Matèries:	Tourism > Congresses.