Columbia subject headings:
Land tenure--Africa--Congresses.
Land use, Rural--Africa--Congresses.
Harvard subject headings:
Land tenure--Africa--Congresses.
Land tenure--Mali--Congresses.
Land use, Rural--Africa--Congresses.
Land use, Urban--Africa--Congresses.
Land use--Africa--Congresses.
Land use--Mali--Congresses.
Princeton subject headings:
Land tenure--Africa--Congresses.
Land use, Rural--Africa--Congresses.