Columbia subject headings:
Agricultural development projects--Africa.
Agriculture--Environmental aspects--Africa.
Economic development--Environmental aspects--Africa.
Environmental policy--Africa.
Harvard subject headings:
Agricultural development projects--Africa.
Agriculture--Environmental aspects--Africa.
Economic development--Environmental aspects--Africa.
Environmental policy--Africa
Princeton subject headings:
Agricultural development projects--Africa.
Agriculture--Environmental aspects--Africa.
Economic development--Environmental aspects--Africa.
Environmental policy--Africa.