Columbia subject headings:
Africans--Attitudes--Congresses.
Economic development--Environmental aspects--Africa--Congresses.
Globalization--Environmental aspects--Africa--Congresses.
Sustainable development--Africa--Congresses.
Harvard subject headings:
Africans--Attitudes--Congresses.
Economic development--Environmental aspects--Africa--Congresses.
Globalization--Environmental aspects--Africa--Congresses.
Sustainable development--Africa--Congresses
Princeton subject headings: