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

Библиографические подробности
Корпоративные авторы:	United Nations Conference on Environment and Development Rio de Janeiro, Brazil, World Travel & Tourism Council, World Tourism Organization, Earth Council
Формат:	‌
Язык:	English
Опубликовано:	[Brazil WTTC 1992].
Предметы:	Tourism > Congresses.