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

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

书目详细资料
企业作者: United Nations Conference on Environment and Development Rio de Janeiro, Brazil, World Travel & Tourism Council, World Tourism Organization, Earth Council
格式: 图书
语言:English
出版: [Brazil WTTC 1992].
主题:
Tourism > Congresses.