Columbia subject headings:
Desertification--Control--Law and legislation--Africa.
Desertification--Control--Law and legislation.
United Nations Convention to Combat Desertification in Those Countries Experiencing Serious Drought and/or Desertification, Particularly in Africa
Harvard subject headings:
Desertification--Control--Law and legislation
Desertification--Control--Law and legislation--Africa.
United Nations Convention to Combat Desertification in Those Countries Experiencing Serious Drought and/or Desertification, Particularly in Africa
Princeton subject headings: