Columbia subject headings:
Desertification--Control--Africa--Congresses.
Desertification--Government policy--Africa--Congresses.
Environmental policy--Africa--Congresses.
International Convention to Combat Desertification (1994)--Congresses.
Harvard subject headings:
Desertification--Control--Africa--Congresses.
Desertification--Government policy--Africa--Congresses.
Environmental policy--Africa--Congresses
United Nations Convention to Combat Desertification in Those Countries Experiencing Serious Drought and/or Desertification, Particularly in Africa--Congresses.
Princeton subject headings: