Columbia subject headings:
Economic development--Environmental aspects--Congresses.
Environmental policy--International cooperation--Congresses.
Environmental protection--International cooperation--Congresses.
Sustainable development--Congresses.
United Nations Conference on Environment and Development (1992 : Rio de Janeiro, Brazil)--Evaluation.
Harvard subject headings:
Economic development--Environmental aspects
Environmental policy--International cooperation
Sustainable development
Princeton subject headings:
Economic development--Environmental aspects.
Environmental policy--International cooperation.
Sustainable development.